How to sort array in decreasing order in Java? Example Tutorial

It's easy to sort an array on increasing order by using Arrays.sort() method, which by default sort the array on increasing order, but if you have to sort array into decreasing order then how do you it? For example, if you have an array of Strings {"a", "b", "c"} how do you sort them into descending order? Well, if you remember, Arrays.sort() is overloaded and there is another version, which accepts a Comparator. To sort the array in decreasing order, you can simply providing a comparator which compares element in the reverse order. Thankfully there is one such Comparator already exists in JDK API, Collections.reverseOrder(). 

FIX Session is not connecting how to diagnose it? Example Tutorial

In this blog post of the FIX protocol tutorial series I would like to share my experience with connectivity issues around Fix Engines. to exchange messages or say to trade electronically clients connect to the broker using FIX protocol and for that, they use FIX Engine. In FIX protocol connection between two FIX Engines is refereed as FIX Session and we normally say whether FIX Session is connected or not connected. FIX Session normally has their start time, end time, and EOD time (End of day time) also called TradingSession start time, Trading Session End Time, and Trading Session EOD time.

How to Fix java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/test [Solved]

The error "java.sql.SQLException: No suitable driver found for jdbc:mysql://localhost:3306/test" occurs when you try to connect MySQL database running on your localhost, listening on port 3306 port from Java program but either you don't have MySQL JDBC driver in your classpath or driver is not registered before calling the getConnection() method. Since JDBC API is part of JDK itself, when you write a Java program to connect any database like MySQL, SQL Server, or Oracle, everything compiles fine, as you only use classes from JDK but at runtime, when the JDBC driver which is required to connect to the database is not available, JDBC API either throws this error or "java.lang.ClassNotFoundException: com.mysql.jdbc.Driver".

How to Fix Failed to connect to queue manager - WebSphere MQ Error in Java? Example

"Failed to connect to queue manager" error comes in WebSphere MQ if any Client like a Java program is not able to connect to the MQ server due to any reason. The reason is actually identified by reason code in error message e.g. code 2397 comes when SSL is enabled between client and server and Java client is not able to connect to the server due to unknown or expired SSL certificates. If you are working in a Java application that is using WebSphere MQ for messaging over SSL then you are bound to face some setup, certificate, and keystore vs truststore related error. 

How to fix java.net.SocketException: Too many files open java.io.IOException in Tomcat, Weblogic Server

Not many Java programmers know that socket connections are treated like files and they use file descriptors, which is a limited resource. The different operating system has different limits on the number of file handles they can manage. One of the common reasons for java.net.SocketException: Too many files open in Tomcat, Weblogic, or any Java application server is, too many clients connecting and disconnecting frequently a very short span of time. Since Socket connection internally uses TCP protocol, which says that a socket can remain in TIME_WAIT state for some time, even after they are closed. One of the reasons to keep the closed socket in the TIME_WAIT state is to ensure that delayed packets reached the corresponding socket.

3 Ways to Solve jQuery - Uncaught ReferenceError: $ is not defined Error

If you are using jQuery, Angular JS, or plain old JavaScript and getting "Uncaught ReferenceError: $ is not defined" error which means $ is either a variable or a method that you are trying to use before declaring it using the var keyword. In jQuery, it's a short name of jQuery() function and most commonly used in $(document).ready(function()). If you are doing some jQuery stuff when DOM is loaded and getting this error it means your browser has a problem loading jQuery library either from the internet or local file system.

Top 5 Udemy Courses to Learn VI Editor or Vim in Linux in 2025 - Best of Lot

Hello guys, if you want to master the  VI editor or Vim and looking for the best online courses then you have come to the right place. Earlier, I have shared the best Linux courses and best shell scripting courses and today, I am going to share the best courses to learn VI editor. If you have worked in Linux, then you may know that VIM is one of the most useful and powerful text editors and every people working in a Linux environment should know about VIM. Also known as VI Editor, it is often touted as the go-to-editor for genius developers who make full use of Vim's capability for code navigation and do fancy things.

Top 5 Udemy + Coursera Courses to Learn Computer Vision for Beginners in 2025 - Best of Lot

Hello guys, if you are learning Computer Vision and Open CV library in Python and looking for the best online courses, certifications, tutorials, and projects, you have come to the right place. Earlier, I have shared the best python 3 courses, best data science courses, and best tableau courses. Today, I will share the best Computer vision courses for beginners and experienced developers. These online training courses, certifications, and projects have been created by experts and trusted by thousands of developers around the world; you can also join these courses to learn Open CV and Computer Vision in 2025 and add an in-demand and highly valuable skill to your Resume to give your career a boost.

Top 5 Udemy Courses to Learn GraphQL for Beginners in 2025 - Best of Lot

If you are a full-stack web developer then you might have heard about GraphQL, another exciting technology. GraphQL is gaining a lot of popularity because of its superiority over traditional REST APIs. Many big companies like Facebook, Coursera, Github, and Yelp have already started using it, which has also helped a lot in terms of gaining popularity. There is a good chance that you might have already have heard about GraphQL in blogs pots, on Medium, or, in general, Web, but like many others, not sure whether it's worth learning or not, and if yes, from where to start. Well, I have been learning GraphQL since last week, and I would like to share some of the resources I have been using for my learning.

Top 5 Udemy Courses to Crack CompTIA Linux+ Certification in 2025 - Best of Lot

Hello guys, if you are preparing for CompTIA Linux+ certification and looking for the best online courses and practice tests to pass this certification exam on the very first attempt, then you have come to the right place. In the past, I have shared the best courses to learn Linux and pass certification like CompTIA A+, Cloud+, and Security+, and today, I will share the best CompTIA Linux+ course and practice test. These are created by experts and trusted by thousands of developers, and they are chosen from websites like Udemy, Whizlabs, and other reputed online portals. You can use them to prepare better for this certification and crack in the first attempt.

Top 5 Udemy + Pluralsight Courses to Learn Vue.js in 2025 - Best of Lot

Hello frontend and full-stack developers, if you want to use Vue.js for your next project and looking to learn Vue.js online and looking for the best Vue.js resources then you have come to the right website. In the past, I have shared the best React courses and best Angular courses and today, I am going to share the best Vue.js courses, both free and paid for beginners and intermediate developers. These are the best Vue courses from sites like Udemy, Pluralsight, and Educative and created by experts, and thousands of frontend developers have already enrolled to learn Vue.js online. They are also very affordable and you can buy most of them for under $15. But, before looking into these awesome Vue.js courses, let's learn a bit more about Vue.js and why you should learn Vue.js in 2025. 

How to System Design Trade Position Aggregator? [Solution]

Hello guys, it's been a long since I shared object-oriented design and system design questions in this blog. It was almost 7 to 8 years when I last blogged about how to solve vending machine design problems in Java and Twitter System Design question? Actually, I had ideas for lots of such design questions at that time, but because of the lengthy nature of these kinds of posts and the amount of time they take, they just sit on my list of drafts. I thought to take them out and publish then slowly improve on them instead of publishing the perfect post for the first time, and today, I am excited to share one of such problems, how to design a trade position aggregator in Java. This program is like portfolio management software that monitors your risk and exposure in real-time based on trades. 

Top 6 Udemy Courses and Books to learn Rust Programming language in 2025 - Best of Lot

Hello guys, if you are looking to learn a new Programming language that will improve your overall programming skills and practices in 2025, then the Rust programming language can be the right choice. Rust is one of the relatively new (born in 2015) and powerful programming languages which combines the power of C++ with the safety of Java and other interpreted languages. When a Programming language is designed, it was either designed for power like C/C++ or for safety like Java, Python, etc. but we didn't have the best of both. There were many attempts to combine the power of C/C++ and safety offered by Java, and it looks like Rust has got that right. Since it was debut in 2015, Rust has gained the attention of the world and the developer community.

Is Pramp a Good Place for System Design and Coding Mock Interviews in 2025?

Hello guys, if you are preparing for tech interviews in this tough market then you may know that preparing for technical interviews can be a daunting task, especially when targeting top-tier companies like FAANG (Facebook, Amazon, Apple, Netflix, and Google).  But, good resources can make this task slightly easier for you.  In the past, I have shared the best Coding interview books, courses, and websites as well as System design books, courses, and websites to prepare well for both Coding and System design interviews. While these books and courses are essential for tech interview preparation if you want to crack FAANG interview then you must do Mock interviews, as many as possible.

Top 5 Udemy Courses to Learn Groovy and Grails Online in 2025 - Best of Lot

Hello guys, If you want to learn Groovy or Grails in 2025 and looking for some awesome resources like books, courses, and tutorials, then you have come to the right place. In the past, I have shared the best Groovy books and best Gradle courses. Today, I will share some of the best online courses to learn both the Groovy programming language and Grails framework .you might have heard about Groovy, if not maybe heard about Grails, Akka, Play, and Gradle, the top 5 Groovy frameworks for Java developers. Instead of competing with Java, Groovy focuses on co-existing with Java and enhancing Java developers' capability on Java's traditional weak areas like scripting.

Top 5 Udemy Courses and Books to Learn Gradle for Beginners in 2025 - Best of Lot

Gradle is one of the latest tools for Java developers to create build scripts and manage dependencies. It's a good alternative to Maven and the best thing about Gradle is that finally, you have a much more readable, and concise build scripts. With Maven, build scripts are written using XML in pom.xml file which is very verbose, but with Gradle, build scripts are written using Groovy which is very concise by design. This means the same 100 line Maven build script can be replaced by 10 to 20 lines of Gradle script. To give you an exam, here is a diagram that compares a Gradle script to a Maven pom.xml file.

Top 5 Udemy Courses to learn Scala Programming Online in 2025 - Best of Lot

Hello guys, if you want to learn Scala Programming language and looking for the best online courses to start your journey, then you have come to the right place. In the past, I have shared the best Scala books and free Scala courses for Java developers, and today, I am going to share the best Scala courses for Programmers and Java developers. These are the truly best Scala courses and created by experts like Martin Oderskey, the creator of Scala himself; you will get a chance to learn Scala from the creator himself. They are also very affordable as Coursera courses are free for learning, and Udemy courses can be bought for just $10 on Udemy sales.

Top 5 Udemy Courses to Learn RedHat OpenShift in 2025 - Best of Lot

Hello guys, if you want to learn the Red Hat OpenShift platform and looking for the best OpenShift courses then you have come to the right place. In the past, I have shared the best Docker and Kubernetes courses and in this article, I am going to share the best OpenShift courses to join in 2025. if you are in the DevOps space, then you might have heard about OpenShift. I didn't know about OpenShift but have to learn when I had to work on a Spring boot project, which is deployed on the OpenShift Platform. Don't worry, it's not a very complicated thing to learn, and if you have used Docker and Kubernetes in past then you will appreciate what OpenShift brings to the table.

Top 5 Courses to Learn Microsoft SQL Server Database and Transact-SQL in 2025 - Best of Lot

Hello guys, you might know that along with Oracle and MySQL, Microsoft SQL Server is one of the most popular relational databases in the tech world. It's used in many big organizations like Investment Banks, Insurance companies, and particularly at firms that use Microsoft technologies like Windows Server. With the growing popularity and market share of Microsoft Azure, there is a good chance that the demand for Microsoft SQL Server will also increase, particularly in the cloud. There is already a high demand for both Microsoft SQL Server DBA and Programmers who have SQL Server experience, and that's why it's an excellent decision to learn MSSQL in 2025.

Top 5 Postman Courses for Java Web Developers and API Testers in 2025 - Best of Lot

There is no doubt that Postman is one of the most popular and essential tools for API development and testing, particularly for front-end web developers. It is used by over 3 million developers across the world, which is a good indication of the fact that Postman is an essential tool for REST API development and API Testing. It is also one of the vital tools for Web Developers, and I have already included Postman in my list of 10 Things Every Web Developer should learn in 2025. If you agree with me that Postman is definitely worth learning for frontend and backend developers and looking for some excellent resources to master this awesome tool, then you have come to the right place. In this article, I am going to share some of the best online courses and tutorials to learn Postman for API testing and development.

Top 3 Udemy Courses to Learn Svelte.js in 2025 - Best of Lot

Hello guys, you might have heard about Svelte.js or svelte, another JavaScript framework for building component-based UI. What? A new JavaScript framework? come on give me a break. Well, It's a little bit different with established JavaScript frontend frameworks like React, Vue.js, and Angular in the sense that it's more like a compiler than a framework or library. In a framework-based application, you ship your code and framework code to the client and they work together in runtime to create magic. While in the case of Svelte.js you don't ship framework code to your client, instead you ship a code generated by the Svelte compiler based upon the instruction you wrote.

Top 5 Udemy Courses to learn Unreal Engine in 2025 - Best of Lot

Hello guys, if you are interested in game development then you may have heard about the Unreal engine, a popular engine to create games in C++. The Unreal Engine is open-source software that allows developers to make video games without even the need to be good at programming or even a programmer with some pre-made games such as a first-person shooter where you can edit it and not start from scratch. If you want to learn Unreal Engine and looking for the best online courses and tutorials then you have come to the right place.

Top 10 Free Courses to Learn Angular and React.js in 2025 - Best of Lot

There is no doubt that both Angular and React (also known as Angular JS and React JS) are two of the most popular frameworks for modern web development, particularly front-end development. It was Angular who started the new way to develop a web application using JavaScript, but now React, and Vue.js are taking that to another level. I have seen more and more people are learning React in recent times. Btw, today's world is all about full-stack developers like you should know how to develop a web application end-to-end, starting from front-end to back-end, and that's why as a full-stack Java developer, you should React or Angular Framework.

Top 5 Udemy Courses to Learn C# in 2025 - Best of Lot

If there is one programming language that deserves more credit, than it currently receives from developers, then it would be Microsoft's C# or C-Sharp. When we talk about popular programming languages, we mostly talk about how Java is ruling the programming world for the last three decades, how JavaScript changed the web world, or how Python has taken over all programming languages in the last couple of years, but we seldom mention C#, which is silently providing jobs and making a career with .NET, Unity, and became a preferred choice for creating desktop GUI applications. If you follow the StackOverflow survey, then you know that C# is always one of the top 5 Programming languages rated by programmers, and this year also close to 31.0% has said that they use C#, which is significant.

Top 6 Udemy Courses to Learn TypeScript for Web Development in 2025 - Best of Lot

Hello guys, if you are thinking of learning TypeScript this year and looking for some excellent resources like books, courses, and tutorials, then you have come to the right place. In my last few articles, I have shared some of the best Angular framework tutorials and courses, and today, I will share some of the best TypeScript online courses you can join to learn it by yourself. Many programmers and web developers are learning TypeScript because of its powerful syntax and advanced OOP features and, more importantly, to develop Angular-based applications. Since the Angular team has chosen TypeScript as the official language for Angular development, it's crucial to know TypeScript if you want to make full use of Angular, but that's not the only reason you should learn TypeScript.

Top 5 Udemy Courses to Learn Maven in 2025 - Best of Lot

The Apache Maven or commonly known as just "Maven," is an essential tool for Java Programmers. It allows you to build your project, manage dependencies, generate documentation, and a lot more. I can vouch for Maven's usefulness because I have come from the pre-Maven world of Software development, where you need to manage all the JAR files required by your project. It may seem easy to you that just download the JAR file but it's not so easy in practice.  For example, you added a new library in your project say Spring framework which also needs log4j but you thought log4j is already there so you didn't do anything, only to realize that your application is not starting anymore and throwing long and convoluted errors. 

Top 5 Udemy Courses to become Full stack Java Developer in 2025 - Best of Lot

Hello guys, If you want to become a full-stack Java developer in 2025 but are not sure what path you should take and how to get there, then you have come to the right place. In this article, I'll share some online training courses you can choose to become a full-stack Java developer. The demand for a full-stack Java developer is very high because Java is the #1 programming language for backend and server-side development. Frameworks like Spring Boot and Spring Cloud are also leading the Microservice architecture development, which is better suited for deployment in Cloud platforms like AWS, Azure, and Google Cloud Platform.

Top 5 Udemy Online Courses to Learn Deep Learning in 2025 - Best of Lot

Learning Deep learning in-depth? Sounds recursive? No? It is, indeed. There is no doubt that Machine Learning is a tough subject, and in-depth knowledge, in particular, requires a lot of maths and complex terminology and is very tough to master. How do you learn it better if the subject matter is that tough? Choose a course that can explain this complex topic in simple words. We are actually blessed that we have many excellent instructors like Andrew Ng, Jeremey Howard, and Kirill Eremenko on Udemy, who are not just experts in deep learning but also excellent instructors and teachers.

Top 5 Free Udemy Courses to Learn Golang/Go Programming for Beginners in 2025 - Best of Lot

Hello guys, if you want to learn the Go programming language or Golang programming language, one of the darling language of emerging tech companies like Byte Dance (the company behind TikTok) and one that has come from Google and looking for the best resources like books, tutorials, and online courses then you have come to the right place. Earlier, I have shared the best Golang courses from Udemy, Pluralsight, and Coursera but a lot of you asked for free online courses to learn Golang so that you can start learning this in-demand programming language without any cost barrier. I heard that and I looked for the best free courses I can find on the internet to learn Golang and this article is the result of that. 

Top 5 Udemy Courses to Learn Spring Batch for Java developers in 2025 - Best of Lot

Good day, folks! Many of my readers asked about a similar list of free courses to study Spring Framework like Core Spring, Spring MVC, Spring Security, and Spring Boot after I released my list of Top 5 courses to learn Spring and Hibernate. To respond to that request, I already shared the 5 best Spring Boot courses, and today I'm going to give free Spring batch courses. I've developed a list of some of the top online free courses for learning Spring batch from the ground up, at your own speed.

Top 5 Udemy Courses to learn Elasticsearch, Kibana, and Logstash in 2025 - Best of Lot

If you are someone who is running an application or planning to run an application that has a complex search/store functionality and is mainly based on the text? You are surely on the right page! Let's understand what Elasticsearch is?. Elasticsearch is an open-source full-text search and analytics engine that is extremely scalable. It enables you to swiftly store, explore, and analyze large amounts of data in near real-time.  It's typically employed as the underpinning engine/technology for applications with advanced search functionality and needs.

Top 5 Udemy Courses for AWS Certified Machine Learning Specialty exam (MLS-C01) Exam in 2025 - Best of Lot

First things first. What exactly is the AWS Machine Learning Specialty?  It is a certification that helps organizations and businesses identify and develop talent with critical skills for implementing cloud initiatives. If you clear the AWS Certified Machine Learning Specialty exam, it means that you are an expert in building, training, tuning, and deploying machine learning models on AWS. The AWS Certified Machine Learning Specialty exam is meant for individuals who perform a development or data science role and have more than one year of experience developing, architecting, or running machine learning workloads, in the AWS cloud. 

Top 6 Udemy Courses to Learn AWS Lambda and Server less Framework in 2025 - Best of Lot

Hello guys, you might have heard about the Serverless architecture and AWS Lambda function as more and more software developers are talking about. AWS Lambda is an event-driven, serverless computing platform provided by Amazon as a part of Amazon Web Services. There is another serverless computing platform like Microsoft Azure that has Azure functions and GCP also has Cloud Functions. With Serverless frameworks like AWS Lambda or Azure Functions, a developer can write scalable, fault-tolerant code that runs in the cloud without provisioning or managing servers. I mean, you don't need to get an EC2 instance or a virtual machine to run your app. 

Top 6 Udemy Courses to learn Gatsby.js Framework in 2025 - Best of Lot

Hello guys, if you want to learn Gatsby and looking for the best online courses to learn Gatsby, then you have come to the right place. In the past, I have shared the best React courses, and best Angular Courses, and today, I will share the best Gatsby online courses for beginners. The Gatsby.js has become significantly popular in recent years. It is a react-based static site generator powered by GraphQL and is quite popular to develop static websites that don't require a traditional backend. Instead, these site uses APIs and CDN to deliver content to browser and mobile applications. 

Top 6 Udemy Courses to learn GitLab CI/CD for Beginners in 2025 - Best of Lot

There are tons of tools in the DevOps world that address different phases of DevOps like create, package, deploy, secure, monitor, etc., but Gitlab does all of them, which is why GitLab is gaining a lot of Traction. Companies like Goldman Sachs, NVIDIA, SIEMENS are using GitLab to create an end-to-end DevOps platform. You can do source code management like Github, CI/CD like Jenkins and TeamCity, Configure infrastructure like Ansible and Puppet, and much more. If you are aiming to become a DevOps Engineer in 2025, then learning GitLab could be a game-changer as there are not many people with GitLab experience, and there is a great demand for IT professionals with GitLab skills. 

Top 5 Udemy Courses to Learn Puppet in 2025 - Best of Lot

Hello guys, If you are interested in DevOps, you might have heard about Puppet, one of the most popular infrastructure automation tools. If you want to learn Puppet and looking for the best Puppet courses, then you have come to both the right places. Earlier, I have shared the best DevOps courses, and today, I am going to share the 5 best Puppet courses you can join to learn this useful DevOps tool. It is no surprise that automation and orchestration make life very easy, be it a small organization or a large-scale industry that houses hundreds of servers. Puppet plays an important role in infrastructure automation, such as creating and configuring application servers.

Top 5 Udemy Courses to become a Salesforce Developer in 2025 - Best of Lot

Hello folks, if you want to become a Salesforce developer and look for the best online training courses, you have come to the right place. Salesforce is customer relationship management used by companies to organize their works and keep the workflow up. Still, it is also a vast platform developer can use to create apps, develop them, customize them, and deploy them on a server. Salesforce has launched many certification programs for these purposes that allow you to learn how this platform works and how to use it, such as the Salesforce Platform App Builder and the Salesforce Administrator, and the Salesforce Development Training, which is required to become a Salesforce developer.

Top 5 Udemy Courses to Crack Certified Kubernetes Application Developer (CKAD) Exam in 2025 - Best of Lot

Hello guys, if you are preparing for Kubernetes Application developer certification or want to become a Certified Kubernetes Application developer (CKAD) and looking for the best online courses to prepare for this certification, then you have come to the right place. Earlier, I have shared the best courses to learn Kubernetes, Docker, and CKA courses. Today, I will share the best online courses to crack the Kubernetes Developer certification, also known as the CKAD. These are the best and most affordable online courses from Udemy, Pluralsight, and Whizlabs and help you prepare for crucial exam topics tested during the certification exam. Remember this is a hands-on exam, and you need solid experience and knowledge to pass this Kubernetes Developer certification.

Top 5 Udemy Courses to Learn React Native for Beginners in 2025 - Best of Lot

If you are a web developer who wants to go into the massive world of mobile app development but don't want to spend time learning Java or Kotlin for Android development or Objective C or Swift for iOS development, React Native could be an excellent tool for you. React Native is an extension of React, a popular JavaScript framework to develop web applications, which allows you to build native Android and iOS applications in JavaScript. Unlike Ionic and Cordova, which promotes write once run everywhere but doesn't offer you to create a native app, React Native does convert your code into native code, especially for GUI.

Top 5 Udemy Courses to Learn Hadoop and Big Data in 2025 - Best of Lot

If you are learning Big Data and want to explore the Hadoop framework and looking for some excellent courses, then you have come to the right place. In this article, I am going to share some of the best Hadoop courses to learn Hadoop in depth. In the last couple of articles, I have shared some Big Data and Apache Spark resources, which are well received by my readers. After that, a couple of my readers emailed me and asked about some Hadoop resources, like books, tutorials, and courses, which they can use to learn Hadoop better. This is the first article in the series on Hadoop; I am going to share a lot more about Hadoop and some excellent resources in the coming month, like books and tutorials.

Top 5 Udemy Courses to learn Oracle Database and PL/SQL in 2025 - Best of Lot

Hello folks, f you have been thinking of learning Oracle and PL/SQL in 2025 and looking for the best online resources like books, courses, and tutorials, then you have come to the right place. Earlier, I shared the best Oracle books and free courses to learn Oracle Database, and in this article, I will share the 5 best online training courses to learn Oracle database and PL/SQL. These are the courses from sites like Udemy and Pluralsight and created by expert trainers and DBAs who have in-depth knowledge of Oracle and PL/SQL, and you can use them to learn Oracle from scratch or level up your Oracle and PL/SQL Skills. 

Top 5 Udemy Courses to Crack Certified Kubernetes Administrator Exam (CKA) in 2025 - Best of Lot

Hello guys, if you are preparing for Kubernetes Administrator certification and looking for the best online courses to start with, then you have come to the right place. In the past, I have shared the best courses to learn Kubernetes and Docker. In this article, I will share the best online courses to prepare for the prestigious Certified Kubernetes Administrator (CKA) exam. There is a lot of demand for skilled Kubernetes administrators to manage cloud environments and Kubernetes clusters, and this exam aims to produce experienced Kubernetes developers and administrators.

Top 5 Udemy Courses and Practice Tests for CompTIA IT Fundamentals (ITF+) Certification Courses in 2025 - Best of Lot

Hello guys, if you are preparing for the CompTIA I.T. Fundamentals certification exam and looking for the best online courses, then you have come to the right place. N the past, I have shared the best online practices to pass CompTIA certifications like CompTIA A+, Cloud+, Linux+, and Security+  exams. In this article, I will share the best courses practices tests to pass the CompTIA I.T. Fundamentals certification. This is one of the best certifications for people who want to start their careers. You will learn essential I.T. skills and computer science concepts and gain certification to showcase your skills. 

Top 5 Free Udemy Courses to learn Oracle Database and SQL Online in 2025 - Best of Lot

Hello guys, if you want to learn Oracle SQL and look for free online courses, you have come to the right place. Earlier, I shared the best SQL and Database courses and books, and today, I will share free Oracle SQL courses for beginners. These are free courses from Udemy, Pluralsight, Coursera, and other reputed online learning websites. They are made accessible for education and learning purposes.  Thousands of people have already joined this course, and you can also do the same and learn Oracle SQL from the comfort of your home or office. 

Top 10 Free Educative.io Courses to Learn Java, Python, and JavaScript in 2025 [Text Based] [UPDATED]

Hello guys, if you are looking for text-based, interactive free courses to learn in-demand skills like Python, Java, C++, and JavaScript, then you have come to the right place. Earlier, I have shared the best courses to learn Python, Java, C++, and JavaScript, and today, I am going to share some great, free, online text-based interactive courses to learn Java, Python, C, C++, JavaScript, R, Scala, and Web Development from Educative. If you don't know, Educative is a new platform for learning online. Unlike traditional video course platforms like Udemy or Pluralsight, they provide Interactive Courses for Software Developers.

Top 5 Udemy Courses to learn Bootstrap CSS Framework for Beginners in 2025 - Best of Lot

Hello guys, If you are doing web design and want to learn Bootstrap to become a better web designer, you have come to the right place. In the past, I have shared the best courses to learn HTML, CSS, JavaScript, and Web Development, and today, I'll share the best online courses to learn Bootstrap in 2025. Bootstrap is one of the most popular CSS Frameworks in the world. Is it meant for developing responsive and mobile-first websites? This is the reason why in the last couple of years, it has grown a lot in popularity, and it’s one of the essential tools for both web designers and front-end developers. In fact, full-stack Developers can also learn Bootstrap to get a feeling for design and become truly full-stack developers.

Top 5 Udemy Courses to learn Software Development SDLC Process in 2025 - Best of Lot

Hello folks, the Software development lifecycle is an essential skill for any programmer, developer, project manager, tech lead, team lead, or scrum master. If you want to learn SDLC and look for the best online courses, you have come to the right place. In the past, I have shared the best courses to learn OOP design and Software architecture, and in this article, I will share the best online training courses to learn Software Development processes. Any development team needs to follow some pre-defined roles called the software development life cycle to create any product ranging from website software or a web application. The requirement was set by the customer and needed to be followed by the development team.

Top 5 Udemy Courses to learn Natural Language Processing (NLP) in 2025 - Best of Lot

Hello guys, if you want to learn Natural Language Processing or NLP in 2025 and looking for the best online courses to learn NLP then you have come to the right place. In the past, I have shared the best courses to learn data science, machine learning, computer vision, and deep learning, and today, I am going to share the best courses to learn Natural language processing, one of the most useful branches of machine learning. These online courses have been created by experts and thousands of developers have already joined this course to learn Natural Language Processing skills and advance in their careers. You can also do the same too. 

Top 5 Udemy Courses to Learn Unity for Game Development in 2025 - Best of Lot

Hello guys, if you are thinking to learn Game development in 2025 then learning Unity can be a great choice. If you don't know, Unity is a powerful game engine that allows you to build both 2D and 3D games for PC, Mac, and Console. Many popular games of the last decade, like Temple Run Trilogy, Rust, Wasteland 2, Pokemon Go, and Angry Birds 2, were built using the Unity game engine. Unity is also a cross-platform game engine, which means you can create games for multiple platforms like Android, iOS, macOS, PC, Linux, and even popular gaming consoles like Xbox, among others. Unity Game engine also allows you to create both 2D and 3D games and provides several useful features to make your game truly amazing.

Top 5 Udemy and Coursera Courses to Learn Statistics for Data Science and Deep Learning in 2025 - Best of Lot

One of the main challenges for programmers learning Data Science and Machine learning is the amount of Mathematics involved in it, particularly in deep learning and neural network training. When I first started exploring deep learning, Maths came as an obstacle. Even though I was an excellent Maths student in my college, I still lack behind in Statistics, Probability, and Calculus involved while learning Data Science, and that's why I decided to refresh my knowledge and re-learn Statistics and Maths for Data Science. We also live in a world of Big data, and someone needs to make sense of all this data, and that's a demand for Data scientists is growing, but it's not a natural field to jump in. Most of the Data scientists I have met hold a Ph.D. and really good at their Maths and Statistics skills.

Top 5 Udemy Courses to Learn R Programming Language in 2025 - Best of Lot

Hello guys, if you are interested in Data Science, Machine Learning, and Statistics then you may have come across the R programming language, one of the best programming languages for those jobs. R is not just a programming language but a whole set of tools and environments created for working with statistical computing and graphics. If you want to learn R programming and looking for the best online training courses, classes, and tutorials then you have come to the right place. In the past, I have shared free courses to learn R and in this article, you will find the best R programming courses from Udemy, Coursera, and edX which you can join to learn R programming language for Data Science and Statistics. The list includes both free and paid courses. 

Top 6 Udemy Courses to Learn Computer Science Fundamentals in 2025 - Best of Lot

Hello guys, if you want to learn Computer Science fundamentals and look for the best resources like online courses and books, you have come to the right place. Earlier, I have shared the best courses to learn data structure and algorithms and in this article, I am going to share the best courses to learn Computer Science fundamentals. These are the best online courses a beginner can join to learn Computer Science basics. They are created by experts and trusted by thousands of people who have already joined these courses in platforms like Udemy,, Coursera, and edX. You can also do the same and improve your knowledge of Computer Science fundamentals to boost your career. 

Top 5 Udemy Courses to learn CSS [Cascading Style Sheet] in Depth in 2025 - Best of Lot

Hello guys, if you are learning CSS or want to learn CSS and looking for the best online courses then you have come to the right place. Earlier, I have shared the best courses to learn HTML, JavaScript, Angular, React, and Nodejs, and today, I am going to share the best CSS Courses for beginners. These are the best online courses from sites like Udemy and Coursera which you can join to learn CSS, one of the essential skills to become a web designer and web developer. These courses have been created by experts like Maximilian Schwarzmüller, who have taught more than a million people web development. You can also join one of these top CSS courses to learn CSS from scratch in 2025.

Top 5 Free Udemy Courses to learn Linux and Ubuntu in 2025 - Best of Lot

Hello guys, if you want to learn Linux and Ubuntu Operating system in 2025 and looking for the best resources like books, online courses, and tutorials then you have come to the right place. Earlier, I have shared the best Kali Linux courses, websites, and books and in this article, I am going to share free online courses to learn both Ubuntu and Linux online. Ubuntu is without a doubt one of the most widely used operating systems for server-side applications. Except for a number of Java apps that run on Windows as a service, I've seen practically all Java applications run on Linux. 

Top 10 Udemy Courses to Learn Blender for 3D Modeling in 2025 - Best of Lot

Hello guys, if you want to learn Blender and 3D modeling in 2025 and looking for the best blender and 3D modeling online courses and other learning resources then you have come to the right place. In the past, I have shared the best courses to learn Unity game engine and Unreal engine courses and in this article, I am going to share the best online courses to learn Blender and 3D modeling in 2025. When you watch some animated movies and you see the gorgeous design of the 3D character you may be wondering about how they design them and what that process is called. Well, it knows as 3D modeling which is a process that makes the computer create a 3D representation of those characters or any shape you see that is 3D, like homes cars the environment, and so on.

Top 5 Udemy Courses to Learn Dart and Flutter for Beginners in 2025 - Best of Lot

If you have been following tech development then you know may know that Dart is another programming language created by Google.  Along with Golang, Angular, and Flutter, Dart is also incorporates best practices from existing platforms and tries to minimize the friction. Dart was originally launched in 2011 but it really picked up lately.  The last few years have seen a phenomenal rise in Dart programming language, mainly because of Flutter, a popular framework from Google for developing cross-platform native mobile applications for Android and iOS platforms. Dart is also one of the most loved programming languages on the StackOverFlow survey and is designed for Developer productivity. It is somewhere between Java and JavaScript.

Top 5 Free Udemy Courses to Learn Apache Kafka for Beginners in 2025 - Best of Lot

With the new year approaching soon, many of us will be excited about it, as a new year means a new beginning. For that beginning, some of us have planned some objectives like working on our physique, learning some new language, learning a demanding skill to boost our career, or beginning our professional career with some greatly advancing opportunities. Here, I am presenting you, a very demanding skill with which many of you are familiar. Apache Kafka, the modern-day advanced analytics chatting service used by big organizations like Uber, Airbnb & much more to handle thousands of conversations routinely. It's also one of the essential skills for Java developers and I have included in my list 22 tech skills for Java developers. 

Top 5 Udemy Courses to Learn Apache Spark in 2025 - Best of Lot

Hello friends, we are here again today for another exciting topic to discuss. But, today we are not gonna discuss something which is related to Java or any other language or spring boot. Today we are gonna discuss something which is immensely practical and has the potential to land you very high paying jobs. Today we are gonna take a look at the best available Apache Spark courses online. Apache Spark is one of the most popular Big Data Framework and powering many companies Big Data processing. Earlier, I have shared the best courses to learn Hadoop and Big Data and many of you asked to share the best courses on Apache Spark so here we are with the best online courses to learn Apache Spark. 

Top 5 Free Udemy Courses to Learn Microsoft SQL Server and T-SQL in 2025 - Best of Lot

Hello there, welcome to my blog. The Microsoft SQL Server is not just one of the popular database solutions but also one of the most complicated software offerings from Microsoft. It requires you to have a foundation in networks, databases, and programming. This wide range of skills is often challenging to obtain without rigorous learning and years of hands-on experience. Since it's difficult to learn and master the demand for expert SQL Server DBAs and Programmers is always high, particularly in the banking sectors. I know many of my friends in London and all around the world become SQL Server DBAs after starting as a programmer just to work on those big banks and earn very high salaries.

Top 5 Free Udemy Courses to Learn iOS App Development for Beginners in 2025 - Best of Lot

If you are thinking to learn iOS App development like developing games and applications for Apple's iOS devices like iPhone and iPad and looking for some free courses then you have come to the right place. In this article, I am going to share five free courses to learn iOS App Development and become the iOS developer you always wanted to be. This is the third article in my series of articles about learning iOS and venturing into app development using Swift. In my previous article, I have shared some of the best-paid courses to learn iOS development you can take to become an iOS developer this year and some free courses to learn Swift Programming language, Apple's own language to create iOS applications.

Top 6 Free Udemy Game Development Courses for Java and Unity Developers in 2025 - Best of Lot

If you are a programmer with a passion for game development or a computer science graduate who wants to become a Game Developer for the console, Android, or iOS device and looking for some excellent courses to start with, then you have come to the right place. In this article, I am going to share some of the best Game Development courses which are entirely free using Unity, Corona, and LibGDX, three of the most popular game engines for Programmers and Game Developers. While LibGDX is Java-based and Unity is C# based but probably the most popular game engine at this moment. 

Top 6 Udemy Courses to Learn Code Refactoring for Experienced Java Programmers in 2025 - Best of Lot

Hello guys, if you want to improve your coding skills, learn to refactor and other coding best practices,  and look for the best online courses to improve your coding skills, refactoring, and other best practices, then you have come to the right place. Earlier, I shared the best design pattern courses and best Data Structure and Algorithms courses, and today, I will share the best online courses you can join to improve your coding and programming skills. Coding skill is one of the most important differentiators when it comes to getting a programming job. It's simple, if you can't code, you can't go up the ladder, and you can't get better jobs. 

Top 5 Udemy Courses & Practice Tests to Crack CompTIA Security+ Certification (SY0–601) in 2025 - Best of Lot

Hello guys, the CompTIA Security+ certification is aimed to be for people who are beginner in security but at least have some fundamentals in IT in general and you will learn some fundamentals in  Cyber Security such as SQL injection, malware, zero-day vulnerabilities, and much more. If you are preparing for CompTIA Security + Certification and looking for the best online training course to boost your preparation then you have come to the right place. In the past, I have shared the best Cyber Security courses, best Ethical Hacking courses, CompTIA A+ Courses, Cloud+ Courses, and today, I will share the best online courses to crack the CompTIA Security+ certification. These courses have been prepared by experts and trusted by thousands of candidates preparing for this prestigious exam.

Top 5 Udemy Courses to Learn Swagger or Open API for Beginners in 2025 - Best of Lot

 Hello guys, if you want to learn Swagger and looking for the best online courses then you have come to the right place. In the past, I have shared the best REST API courses as well best Postman courses, one of the best tools to test REST API and in this article, I am going to share the best online courses to learn Swagger in 2025. I have curated this list from my favorite online learning platform like Udemy, Pluralsight,  and Coursera and they are suitable for both beginners and intermediate developers who want to master the Swagger tool. But before we jump into these courses Let us start with the simple stuff first. What exactly is Swagger and Open API?

Top 5 Udemy Courses to Learn REST Assured for Testing in 2025 - Best of Lot

Hello guys, if you want to learn REST Assured tool for testing your API and RESTful Web services and looking for the best online courses to learn REST Assured then you have come to the right place. In the past, I have shared the best online courses to learn various REST API development tools like Postman, SoapUI, and Selenium, and today, I am going to share the best REST Assured courses to learn this useful tool in 2025. These are the best resource I can find to learn REST assured, particularly when it comes to choosing online courses and they are from popular online platforms like Udemy and Pluralsight. You can join one or two of these courses to master this excellent tool to automate your REST API Testing.

Top 5 Udemy Courses to Learn API Development (REST, SOAP, Web) in 2025 - Best of Lot

Hello guys, if you want to learn API development and looking for the best resources like online courses, training classes, and tutorials then you have come to the right place. Earlier, I have shared the best courses to learn Spring and RESTful web services and in this article, I am going to share online courses to learn API development. Application Programming Interface, commonly known as API is used as a source of communication between applications. By using API, features, or services of an application can be used in another application. API development has become an integral part of modern application development. Today, a full-fledged application is incomplete without APIs.

Top 5 Udemy Courses to Learn SoapUI REST Testing tool in 2025 - Best of Lot

Hello friends, if you want to learn SoapUI a looking for the best resources like online courses and books then you have come to the right place. In the past, I have shared the best books and courses to learn RESTful Web Services, both REST and SOAP, and today we are gonna take a look at the best available SoapUI courses online. If you have developed any public or private API then you may have faced challenges about testing your API, both pre and post-release as well as automating common test scenarios. While there are a lot tool tools like Postman, RESTAsssured, and a few others, SoapUI is one of the best tools for testing APIs and automating tests cases. 

Top 5 Free Udemy Cyber Security Courses for Beginners to Learn in 2025 - Best of Lot

Hello guys, if you want to learn Cyber Security and start your career as a Security expert or just want to improve your knowledge about Cyber Security, Information Security, Web Security, and Computer Security then you have come to the right place. Earlier, I have shared the best Cyber Security Courses and best Web Security courses and in this article, I am going to share free online courses to learn Cyber Security, This is in line with your demand as many people asked me to share free courses for Cyber Security when I shared the best-paid courses. So, here we go, In this article, I have compiled free Cyber Security courses from Udemy, Coursera, and edX and they are absolutely free to learn and join. 

Top 5 Udemy Courses to Learn Elixir and Phoenix for Beginners in 2025 - Best of Lot

Hello guys, if you want to learn a powerful functional programming language in 2025 and looking for the best resources like online courses and tutorials then you have come to the right place. Earlier, I have shared the best Scala courses and best courses to learn Erlang, two of the most popular and powerful Functional programming languages and in this article, I am going to share the 5 best courses to learn the Elixir programming language, another powerful Functional Programming language for developers. Along the way, I will also mention the best courses to learn from Phoenix. But before that,  Let us clear the air first. What exactly are Elixir and Phoenix? Elixir is basically a functional programming language that is based on the Erlang programming language. And Phoenix is a web framework written in the Elixir language.

Top 5 Udemy Courses to Learn Kibana for Beginners in 2025 - Best of Lot

If you know anything about monitoring and data visualization, you will surely know what Kibana is. Kibana is an open-source data analytics and visualization platform that you can use to gain better insights into your data. Data visualization is the process by which users can detect a pattern or monitor the environment and take actions with regard to your data. It has become one of the most sought-after skills in the world of Big Data. And Kibana allows you to visualize and explore all the log data collected in Elasticsearch Clusters.

Top 5 Udemy Courses to Learn Erlang for Beginners in 2025 - Best of Lot

Hello guys, if you are looking to learn a functional programming language in 20254 then Erlang is a great programming language to start with. In the highly competitive world of programming languages, Erlang stands apart. It is a quirky language that may not be as popular as some of its peers, but it actually runs a lot of popular applications like WhatsApp and WeChat. To put it simply, Erlang is a general-purpose programming language used for building scalable and concurrent systems. It was built by Ericsson during the late 1980s for handling telephone exchanges. If you want to learn Erlang and looking for the best Erlang courses then you have come to the right place. Earlier, I have shared the best Scala courses, another top functional programming language, and in this article, I am going to share the best Erlang functional programming courses. 

Top 5 Udemy Courses to Learn Solidity Programming in 2025 - Best of Lot

Hello guys, if you want to learn Solidity in 2025 and looking for the best resources like online courses and tutorials then you have come to the right place. Earlier, I have shared the best blockchain courses and best courses to learn Ethereum and in this article, we are going to see the best online courses to learn Solidity Programming language in 2025. For those of you who don't know, Solidity is a high-level programming language. It is a contract-oriented language used for implementing smart contracts, particularly with the Ethereum blockchain network. Solidity has been designed to work with the Ethereum Virtual Machine, or EVM, and is highly influenced by other languages like C++, Python, and JavaScript. 

Top 5 Free Udemy Courses to Learn Java 8 to Java 21 in 2025 [UPDATED]

Hello guys, if you are looking for some awesome resources, like books, tutorials, and courses to learn and master new features introduced in Java 8 and Java 16, then you have come to the right place. In the past, I have shared some of the best Java 8 tutorials and books, and in this article, I am going to share some of the best and some free Java 8, Java 9, to Java 16 courses from Udemy and Pluralsight with you. There are 2 free courses in this list that are pretty similar to many paid courses you usually buy, and many of these are made free for just promotional or educational purposes by their instructor. You can join these courses to learn JDK 8, 9, 10, 11, 12, 17, and JDK 21 features in a couple of days.

Top 5 Udemy Courses to Learn Stream and Lambda Expression in 2025 [UPDATED]

It's been more than 6 years since Java 8 was launched in March 2014 and many of you already thinking that Java 8 is now a legacy version but there are still so many Java developers out there who don't know how to code using new language features of Java 8 like lambdas, stream, and method reference. It's high time for all those programmers to learn and master Java 8 before their skill becomes outdated. After that, we already have a couple more Java releases like  Java 9, Java 10, Java 11, 12, 13, 14, 15, 17, and Java 21in the space of just 6 years apart but Java 8 is still the most used version, particularly when it comes to coding style.

Top 5 Udemy Courses to Learn Growth Hacking in 2025 - Best of Lot

You all know what hacking is. The first thing that comes to your mind will be large computer screens with long, green lines of code with a hooded person hunched over the keyboard, slicing through the security systems of the internet. Hacking is widely viewed as something sinister, something to be afraid of. But what is Growth Hacking? If you thought both these are somehow related, you couldn't be more wrong. The term Growth Hacking can be both misleading and self-explanatory. It is a catch-all term for all the strategies that help growth. It is mainly related to tech start-up companies in the early stages, with a need for massive growths to break even.

Top 5 Udemy Courses to Learn Microsoft Power BI Online in 2025 - Best of Lot

Hello guys, if you are learning Microsoft Power BI in 2025 or keen to learn Microsoft Power BI in 2025 and looking for the best Power BI online courses then you have come to the right place. In the past, I have shared the best tableau course and online courses to learn QlikView/Qliksense, and today I am going to share the best courses to learn Microsoft Power BI in 2025. Along with Tableau, Excel, QlikView, Power BI is another essential tool for Data scientists and used heavily for Data Analysis and visualization. It is one of the essential tools for Data scientists to learn in 2025. This is the world of Data and any organization which has the right set of data has a competitive advantage over others, but data alone is of no use unless you can analyze and visualize it to find useful insights to grow the business. 

Top 5 Free Udemy Courses for Google Cloud Professional DevOps Engineer Certification in 2025 - Best of Lot

Hello guys, If you want to learn DevOps on the Google Cloud Platform, prepare for Google Cloud Professional DevOps Engineer certification, and look for free online training courses, you have come to the right place. In the past, I have shared the best courses to learn Google Cloud Platform and the best DevOps courses for experienced developers, and in this article, we are going to share 5 Free Courses to pass the GCP Professional Cloud DevOps Engineer exam. These free online courses will help you become a professional Cloud DevOps engineer of the Google cloud platform in 2025.

Top 5 Udemy Courses to Learn Apache Kafka in 2025 - Best of Lot

Hello guys, you might have heard about Apache Kafka, the next generation, Big Data messaging system which is handling billions of messages per day on companies like LinkedIn, Uber, Airbnb, Twitter, etc. It's a revolutionary technology and perfect for today's mission-critical application which has so much data to process and analyze. Since last year, I have been sharing a lot of resources like books, courses, and tutorials to learn these sunrise technologies so that you can aware of these and learn them to make yourself more valuable or jump into some exciting career path. For example, In the past, I have shared some awesome courses on Big Data, Spark, and Hadoop and many of my readers requested me to share similar suggestions for Apache Kafka.

Top 5 Books to Learn Core Java for Beginners in 2025 - Best of Lot

Hello guys, I have shared a lot of books related to Java and related technologies in the past, like books and online courses to learn Spring, Hibernate, JVM internals,  Java Performance tuning, Multi-threading, and Concurrency, Design patterns, Data structure, and Algorithms, etc., but I haven't shared books for core Java books for beginners yet. Even though I have mentioned a couple of popular titles every now and then, I really didn't have a complete compilation of essential core Java books for beginners. Since Java is one of the most popular programming languages and very useful for getting a job as a Software developer, it has become a choice of programming language to start learning coding and application development, it makes sense to start well with core Java.

Top 5 Udemy Courses to Crack Salesforce Administrator (CRT-101) Certification in 2025 - Best of Lot

Hello guys, if you are preparing for Salesforce Administrator (CRT - 101) certification and looking for the best online courses then you have come to the right place. Earlier, I have shared the best Salesforce developer and App Builder courses and in this article, I am going to share the best Salesforce Administrator courses you can join to crack this in-demand certification in 2025. If you follow Cloud Computing trends then there is a good chance that you might have heard about popular Salesforce certifications like the Salesforce Certified Administrator program (CRT-101). There is a great demand for certified Salesforce administrators due to the immense popularity of Salesforce in cloud-based CRM.

Top 8 Udemy Courses to Learn Web Development in 2025 - Best of Lot

Hello guys, if you want to learn Web Development this year and think that it's too late to make that goal, then let me tell you it's never too late. In this article, I will share some of the best Web Development courses you can take to learn online by yourself. Suppose you are a regular reader of this blog. In that case, you might know that earlier, I have shared about The Complete Web Developer RoadMap, which outlines how you can become a Modern Web Developer everybody wants to hire. In that post, I have explained how you can learn everything about Programming and Web Development from scratch and with no coding experience.

Top 6 Udemy Courses to Learn Jenkins for CI/CD for Java Developers in 2025 - Best of Lot

In today's world of Agile and DevOps, Jenkins has become an indispensable tool for both Java programmers and DevOps engineers. Jenkins allows you to set up continuous integration (CI) and continuous deployment (CD) pipeline, which reduces risk on Software development and delivery. This means hassle-free development and deployment. It also means quicker feedback because as soon as a commit has been made into a source control system like Git, Jenkins can start building artifacts and running unit tests. You will instantly receive an email if the build fails due to an issue or a unit test doesn't pass. This quick feedback loop ensures that your codebase remains error-free.

Top 5 Udemy Courses to Learn Selenium for Java Developers in 2025 - Best of Lot

The days of manual testing are limited as more and more companies are shifting towards Automation testing. This means all manual testing QAs need to learn new test automation skills like Selenium, Cucumber, JUnit, Mockito, and TestNG to boost their careers. If you are manual testers or non-programming testers interested in learning test automation, a Java developer who wants to write a better integration test, or a freshers/graduate who wants to kick start their career in automated testing, then you have come to the right place. In this article, I will share some of the best courses to learn Selenium Web driver with Java and other automation testing tools like JUnit, Cucumber, etc.

Top 5 Udemy Courses to become a Frontend Developer in 2025 - Best of Lot

Front-end development is a critical skill for web developers as there is a lot of demand for programmers with excellent front-end development skills. If you've never experienced client-side web development, learning the plethora of frontend technologies can be difficult. Still, with proper guidance and choosing suitable courses, you can achieve your target. The one thing which I want to tell you is that a good knowledge of HTML, CSS, and JavaScript is a must for any frontend developer. Even though we live in the era of frameworks and libraries, knowledge of these fundamental technologies cannot be undermined.

Top 10 Udemy Advanced Core Java Courses for Experienced Programmers in 2025 - Best of Lot

Hello guys, Many of my readers have been asking me for advanced Java courses to improve topics like Java collections, Stream API, Design Patterns, Concurrency, Java Performance, Generics, Garbage Collections, and new features introduced in recent Java releases like Java Modules System. If you also had that question in mind and looking for some great courses to learn core Java in-depth, then you have come to the right place. In this article, I will share some of the advanced core Java courses for experienced programmers. 

Top 5 Udemy Courses to Learn Android in 2025 - Best of Lot

Hello guys, Java has been very lucky that Android uses it as a programming language. This opened a big door of opportunities for Java developers in Android app development. Many people ask me why Java developers should learn Android? My simple answer is that having knowledge of Android OS and Android SDK improves your chances of getting a job and making a difference in people's lives because Android Apps are a direct way to connect billions of people. Android is, without a doubt, THE biggest mobile platform in the world, with over 80% market share and billions of devices running Android. By creating apps for such a big platform, you have an excellent opportunity to make a difference.

Top 5 Udemy Courses to Learn Java EE or JEE in 2025 - Best of Lot

If you are a Java developer or someone who wants to learn Java EE for web development and looking for the best online courses to kickstart your learning, then you have come to the right place. Earlier, I shared the best JSP and Servlet courses. In this article, I will share five excellent Java EE courses that cover Java EE 8 and are very useful for learning Jakarta EE  in 2025, the latest version of the Java EE release, which is now also known as Jakarta EE. Are you new to the Java web development world and wondering what Java EE and Jakarta EE are? Let me give you a brief overview of Java EE first before looking at the online courses you can join to learn Java EE in 2025. 

Top 5 Udemy Courses to Learn Java Collections and Stream API in 2025 - Best of Lot

Hello guys, If you have been programming in Java, then you know that Collections and Streams are two of the most important Java APIs. There is hardly any Java program I have written in my 15 years of professional Java development career where I have not used any classes from Collections and recently from Stream API. I strongly believe that every Java developer should have a good knowledge of both of them, and that's why I am writing this post. If you are new to Java, then you might be thinking about why they are so important? Well, they are important becuase they deal with data, and data is at the heart of every application and business. For example, if you create an application like Facebook, then where do you store your Users on memory?

Top 5 Udemy Courses to Learn JUnit 5, Mockito, and TDD in 2025 - Best of Lot

Hello guys, if you want to learn Unit testing in Java and tools like JUnit, Mockito for test-driven development and looking for the best online Java testing courses, then you have come to the right place. Earlier, I have shared the best Java Programming courses, and today, we'll talk about JUnit and Unit testing, one of the critical skills for any Software developer. You may already know that JUnit and Mockito are two of the most popular testing libraries for Java applications, and you will find them in almost every Java application classpath. I often meet and work with Java developers who know Java well but haven't written a single unit test. 

Top 5 Udemy Courses to Learn Kotlin in 2025 [UPDATED]

Hello there, If you want to learn Kotlin and looking for the best online courses then you have come to the right place. Earlier, I have shared the best Java courses for beginners and the best Android Courses and today, I am going to share the best courses to learn Kotlin in 2025. You might have heard about Kotlin and how it's becoming the standard language to develop Android applications, but it's much more than that. If you don't know Kotlin, it's a relatively new programming language that makes programming for Android and Java easier. Ever since Google announced Kotlin as the official language for Android Development, I have received a lot of queries from my readers about whether Java developers should learn Kotlin now? 

Top 5 Udemy Courses to Learn RESTful Web Services in Java with Spring for Experienced Developers in 2025

In the last article, I have shared some courses to learn Microservice development with the Spring framework, and today, I'll talk about RESTful web service developments. The REST API and RESTful Web Services need no introduction, it's everywhere now and driving a new internet revolution. Most of the software development in the web space now also involves REST APIs. Gone are the days where the only interface for a web application was the browser, now most of them support REST APIs, which allows them to be accessible on any device like mobile devices, tablets, apple watches, and any other digital gadgets. It doesn't matter whether you are working for software giants like Amazon, Facebook, or Google or working with startups like Uber or Netflix, REST APIs are everywhere.