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Top 10 Websites and Online Platforms to Learn Git for FREE in 2022 - Best of Lot

Hello guys, like many programmers, I have also worked with a lot of source control systems like SVN, CVS, TFS, VSS, Mercury, and I had always wondered why so many source control systems? Why not just one. It's one of the necessary software tools for development, and everyone needs a version control and code repository, there should be a standard solution. It seems Git and Github have solved that problem now. Now, Git is everywhere from open source to closed source, from small startups to big Investment banks, but there were still legacy projects which were lying on SVN and CVS, but they are now also started moving towards it.

How to use Adapter Design Pattern in Java with Example

The adapter design pattern in Java, also known as the Wrapper pattern is another very useful GOF pattern, which helps to bridge the gap between two classes in Java. As per the list of Gang of Four patterns, the Adapter is a structural pattern, much like Proxy, Flyweight, Facade, and Decorator patterns in Java. As the name suggests, the Adapter allows two classes of a different interface to work together, without changing any code on either side. You can view the Adapter pattern as a central piece of the puzzle, which joins two pieces, which can not be directly joined because of different interfaces.

How to fix tibrvnative.dll : Can't load IA 32-bit .dll on a AMD 64-bit platform? Solution

Can't load IA 32-bit .dll on an AMD 64-bit platform is a generic error, which comes when a 64-bit process tries to load a 32-bit dll, but when it comes it's not that easy to resolve. One of my readers was getting this error tibrvnative.dll : Can't load IA 32-bit .dll on an AMD 64-bit when he was trying to install Tibco Rendezvous 8.2 on his Windows 8 HP Laptop. He was working on a Java application that was dependent upon Tibco Rendezvous for inter-process communication. After installing Tibco on his machine he was having a hard time running his Java application, first, he was getting errors like java.lang.UnsatisfiedLinkError: no tibrvnative in java.library.path and after resolving that he was getting a new error tibrvnative.dll: Can't find dependent libraries.

What is the Use of Interface in Java and Object Oriented Programming? [Answer]

Many times, I have seen questions like why should we use an interface in Java? If we can not define any concrete methods inside the interface the what is the user of the interface? Or even more common, What is the real use of the interface in Java? I can understand beginners asking this question when they just see the name of the method inside the interface and nothing else. It takes time to realize real goodness or actual use of interface or abstraction in Java or any object-oriented programming. One reason for this is a lack of experience in really modeling something real in the program using object-oriented analysis and design. In this article, I will try to answer this question and give you a couple of reasons to use the interface in your code. If you have a good understanding of Object-oriented basics like Polymorphism, then you know that it allows you to write flexible code.

Difference between Inheritance and Composition in Java and Object Oriented Programming

Though both Inheritance and Composition provide code reusability, the main difference between Composition and Inheritance in Java is that Composition allows reuse of code without extending it but for Inheritance, you must extend the class for any reuse of code or functionality. Another difference that comes from this fact is that by using Composition you can reuse code for even the final class which is not extensible but Inheritance cannot reuse code in such cases. Also by using Composition, you can reuse code from many classes as they are declared as just a member variable, but with Inheritance, you can reuse code from just one class because in Java you can only extend one class because multiple Inheritance is not supported in Java.

Top 7 System Design and Software Analysis and Design Books in 2022 - Best of Lot

Hello guys, System design and Software design are two important topic for coding interviews and also two important skill for Software developers. Without knowing how to design System you cannot create new software and it will also be difficult to learn and understand existing software and system. That's why big technical companies like FAANG pays special attention to System design skill and test candidates thoroughly. If you want to learn System design and looking for best resources like best System design books and courses then you have come to the right place. Earlier, I have shared best System design online courses, as well as Software architecture courses,  and common System design questions and in this article, I am going to share with you best System design books to learn Software design. 

Top 9 Blockchain Courses & Certifications For Beginners in 2022 - Best of Lot

Hello folks, if you are not living under the rock, you would have definitely heard about Blockchain and Cryptocurrencies. Blockchain is one of the most in-demand skills, and there are not many people out there. If you want to learn Blockchain and related technologies like Ethereum, Solidity, Hyperledger, etc., and are looking for Blockchain training courses and certification, you have come to the right place. But, before that, let's get a quick overview of what Blockchain is, why it's popular, and why you should learn Blockchain in 2022.

Top 6 Refactoring Courses for Experienced Programmers in 2022 - 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 10 Coursera Courses and Certifications to Learn Web Development in 2022 - Best of Lot

Hello guys, If someone asked me 10 years ago about how to learn web development and get a job I would more likely say that you have to go to college and get your Bachelor’s degree and then try to get a job or internship. In short, it was only possible to become a web developer by spending years on education and thousands of dollars, now the internet has changed the game nowadays. These days many online platforms like CourseraUdemyPluralsight, CodeCademy, and Educative appeared to the world allowing people o take online training courses in almost any industry and web development is one of them. 

Top 20 Bootstrap Interview Questions Answers for 1 to 3 Years Experienced

Hello guys, if you are preparing for web designer or web developer interview and looking for bootstrap interview questions, one of the popular CSS framework then you have come to the right place. Earlier,  I have shared HTML 5 Interview Questions and JavaScript Interview Questions and today, I will share 20 common Bootstrap Interview questions for 1 to 3 years experienced web designers and developers. These courses are suitable for both beginners and intermediate developers. If you have used bootstrap and CSS then you can easily answer all of these questions but if you struggle to answer any of these questions then you can always go back and checkout these best Bootstrap courses to learn and revise essential Bootstrap and CSS concepts in quick time. 

Top 5 Courses to Learn TerraForm in 2022 - Best of Lot

Hello folks, if you have done infrastructure deployment like creating a server, installing applications, and creating a production environment then you know that deploying and maintaining traditional infrastructure is a manual task fraught with repetitive tasks, inconsistent configuration, and always out-of-date documentation. Terraform is an essential DevOps tool that is used to version infrastructure as code. If you want to learn Terraform in 2022 then you have come to the right place. In the past, I have shared the best DevOps courses and best online courses to learn essential DevOps tools like Docker, Jenkins, and Kubernetes, and today I am going to share the best online courses to learn Terraform in 2022. The list contains courses for both beginners and experienced engineers.

Top 5 AWS Solution Architect Associate Certification Practice Test and SAA-C02 / SAA-C03 Exam Dumps in 2022

Hello guys, if you are preparing for the AWS Certified Solutions Architect Associate (SAA-C03 and SAA-C02) certification exam and looking for challenging practice tests to assess your preparation then you have come to the right place. In this article, I am going to share the best Practice test and questions to prepare for the AWS Solution Architect Associate  (SAA-C03 and SAA-C02) exam from Udemy, Whizlabs, and other portals, totaling more than 2000+ practice questions. These practice tests are created by AWS experts and certified developers and Solution architects like Stephane Maarek and Cloud guru Ryna Krooneberg. Mock simulators play an important role in any certification and the AWS Solution Architect Associate-level exam is no different.

Top 20 Web Development Interview Questions with Answer with 3 to 5 years experienced

Hello guys, if you are preparing for web developer job interview and looking for frequently asked web development interview questions then you have come to the right place.  Earlier, I have not just  shared HTML Interview QuestionCSS Interview Questions, and JavaScript Interview Questions, but also question from popular Frontend frameworks like React and Angular, and in this article, I am going to share common web development interview questions for 3 to 5 years experienced professionals. If you have worked as a web developer or created a couple of web projects then you may know answers of all of these questions but if you struggle to answer them then you can always go back and join any of these best web development courses to learn and revise key web development concepts. 

Top 6 Free Game Development Courses for Java and Unity Developers in 2022- 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. Unity Game engine is both powerful and free, which makes it ideal to use for game development. If you don't know, Unity is the same software used to create Pokemon Go and many other best selling mobile games!

Top 5 Free iOS App Development Courses for Beginners in 2022 - 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 5 Free Courses to Learn Microsoft SQL Server and T-SQL in 2022 - 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.

Review - Is Certified NFT Professional (CNFTP) on 101 Blockchains worth it?

Hello guys Non-fungible tokens (NFTs) have evolved as one of the interesting technological trends and lot of people want to jump into NFT train. If you also want to learn NFT and looking for the best NFT certification then you have come to the right place. Earlier, I have shared best paid NFT online courses as well as best free NFT courses and in this article, I am going to review one of the best NFT certification from 101 Blockchains, the certified NFT Professional certification. In this article, you will find out whether a Certified NFT Professional certification is worth it or not. We will deep dive into this NFT course and figure out the strong and weak points of this course and check if this CNFTP certification is any good or not, and then evaluate whether the price you pay for this NFT certification is justified or not.

Top 5 Courses to learn Pandas and Python Data Analysis for Beginners in 2022 - Best of Lot

Pandas is one of the most potent and popular Python libraries for Data Analysis. It's also one of the favorite tools for Data scientists because it helps them in cleaning, transformation, manipulation, and analysis of Data. To be honest, data in the real world is messy, and before you can start with your analysis, you need to clean and transform the data in the format you want. A tool or library like Pandas really helps there. That's why it's essential to learn about Pandas while doing Data Analysis with Python. It's even more critical if you are in the field of Data Science and Data Analysis. If you know Paands, well and good, but if you don't mind, as I am going to share some of the best online courses to learn Pandas and Data Analysis with Python in 2022.

Top 20 IT Support Interview Questions with Answers for 2 to 5 Years Experienced

Hello guys, if you want to start your career as IT support engineer and  preparing for IT support interview and looking for frequently asked IT support questions from interviews then you have come to the right place. Earlier, I have shared UNIX Interview Questions, SQL Interview Questions as well as Java support engineer interview questions and in this article, I am going to share common IT support questions for 3 to 5 years experienced professionals. If you have worked as IT support engineer then most likely you can answer all of these questions but if you struggle to answer them then I suggest you to first go through a comprehensive IT support course like Google's IT support Professional certification on Coursera to learn and revise key concepts required for IT support engineers. Even beginners can join this course to start their career as IT support engineers. 

Top 5 Apache Spark Online Courses for Java and Python Developers in 2022 - 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 Spring and Hibernate Training Courses for Java JEE Programmers - Best of Lot

Spring and Hibernate are two of the hottest and most in-demand web frameworks in the Java world and also two of the most essential skill for any Java programmer to get a job in the web development space. The Spring framework is in around 2004 and established itself as the leading framework to develop Java applications both in core Java and web development areas. The Spring framework comes with a lot of modules to support different kinds of developments like Spring Security to address the security requirements of most web and enterprise Java applications. It supports single sign-on, LDAP authentication, Role-based access control, and much more such essential features. Spring also supports the development of REST services which is now become a standard way to provide web services.

Top 20 Spring Cloud Interview Questions with Answers

Hello guys, if you are preparing for Spring and Microservice developer job and need Spring cloud interview questions then you have come to the right place. Earlier, I have shared interview questions on Spring Boot, Spring MVC, Spring Security, Spring Testing and Spring Core and in this article I am going to share common Spring Cloud questions for Java and Microservice developers. If you have used Spring Cloud in your project then you can answer all of these questions easily but if you struggle to answer any of these questions then you can always go back and join one of these best Spring Cloud courses and best Microservice courses to learn and revise essential Spring Cloud concepts. 

Top 10 DevOps Courses for Experienced Programmers to Learn Online in 2022 - Best of Lot

DevOps is really hot at this moment, and many job opportunities are lying for distinguished engineers and DevOps professionals. If you are an experienced Java programmer and want to become a DevOps engineer, then you have come to the right place. In this article, I am going to share some of the best online training courses you can take to become a DevOps professional. The most crucial advantage of DevOps is that it helps you to deliver better software and provide more control over your environment and software development process with the help of modern tools and automation. That's the reason the demand for DevOps professionals is growing exponentially. It's also one of the high-paying jobs along with Data Science and Machine learning specialists.

Top 10 Udemy Courses for Python and Web Development in 2022 - Best of Lot

Hello guys, Udemy, one of the most popular online learning platforms, is known for its sale where you can buy a $200 course for just $10, and they are running a sale now. It's actually an excellent time to buy some quality courses as you won't get another chance to buy the course at a price as low as $9.9, but the big question is which courses you should buy on Udemy in 2022? I always purchase courses from the reputed instructor and teach evergreen and in-demand skills like Java, Python, Microservices, Docker, Kubernetes, and AWS. I generally buy a lot of courses in Udemy sales and then access them whenever I need them. Though, I must warn you Udemy is addictive, and I often buy more classes than I need, so beware of that and buy courses you need now or shortly.  

Top 5 Free Apache Kafka Courses for Beginners in 2022 - 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 Python Course for Data Science and Machine Learning in 2022 - Best of Lot

Hello guys, if you want to learn Data Science with Python and looking for the best Python courses for Data Science, then you have come to the right place. In the past, I have shared the best Python courses for beginners, best Python books, websites, and Python projects, and in this article, I am going to share the best Python course for Data Science. If you want to become a Data Scientist or just want to take your Python skills to the next level from a data science point of view, you can join these courses. I have created these best Python courses from popular websites like Udemy, Coursera, and Pluralsight. I have also included python online courses for both beginners and intermediate Data Scientists. They not only cover python but also essential Python libraries for Data Science like Pandas, NumPy, etc. 

Top 20 Data Science Interview Questions with Answers

Hello guys, if you are preparing for Data Science interview or want to become a Data Scientist and looking for common Data Science questions then you have come to the right place. Earlier, I have shared Machine Learning Questions, Python Interview Questions, and AI Interview Questions and in this article, I am going to share common Data Science Interview Questions and answers for beginners and people with 1 to 2 years of experienced. There is a good chance that you are already familiar with these questions and can answer all of them if you have worked for a couple of years in Data Science field but if you struggle to answer any questions then you can always join these best Data Science courses to learn and revise those Data Science concepts. 

Top 5 Courses to Learn Shell scripting in Linux (bash, ksh, csh) Online in 2022- Best of Lot

Hello guys, you might know that a massive chunk of a developer's time is wasted in trying to repeat tasks and commands, especially when it comes to working with a bunch of UNIX or Linux machines, and a good knowledge of shell scripting can free you from such mundane task and give time to do some interesting stuff. If you don't know what shell scripting is then let me tell you is nothing but a program written using shell built-ins, and Linux commands to automate things, like checking if a host is reachable or finding and deleting large files that are older than certain days or archiving them into another machine.

Top 5 Dart and Flutter Online Courses for Beginners in 2022 - 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 20 CSS Interview Questions With Answers

Hello guys, if you are preparing for web developer job interview and looking for common CSS Interview Questions then you have come to the right place. Earlier, I have shared HTML Interview questions and CSS Interview Questions and in this article, I am going to share 20 common CSS Interview Questions with answers. If  you have used CSS for a couple of months then most likely you know the answer of these CSS questions but if you struggle with any of them then you can always go back to these best CSS online courses to revise key concepts. I have tried to include as many questions as possible covering different CSS concepts but you can also contribute, feel free to ask questions on comments. 

Top 7 Figma Online Courses for UI and UX Design in 2022 - Best of Lot

Hello guys, if you want to learn Figma in 2022, one of the most popular U.I. and UX design tools, and looking for the best online courses, then you have come to the right place. Earlier, I shared the best web design courses and best web development courses, and in this article, I will share the best courses to learn Figma for U.I. and UX design in 2022. Having a good-looking website is not only beneficial but also necessary in today's world, and that's why U.I. and UX design skill is in high demand. There are a lot of jobs in both big and small companies for expert designers, and knowledge tools like Figma are going to improve your U.I. design skill for sure. 

Top 6 Object Oriented Programming and Design Courses for Java Programmers in 2022 - Best of Lot

There is no doubt that Object-oriented programming is a pillar of software development and one of the reasons for the massive success of Java. Good knowledge of Object-oriented programming helps you to create better software. It also allows you to communicate your ideas better with your team members and fellow programmers. Despite being such an important technology, it's difficult to find programmers who understand OOP well. Many programmers just think that OOP is nothing more than Abstraction, Inheritance, Encapsulation, and Polymorphism, without genuinely understanding these concepts and mastering them.

Top 20 Machine Learning Interview Questions with Answers

Hello guys, if you are preparing for Machine Learning Interviews and looking for common Machine Learning questions then you have come to the right place. Earlier, I have shared 35 Python Interview Questions and 20 AI Interview Questions and in this article, I am going to share 20 Machine Learning Interview Questions with answers. If you have gone through a Machine learning course or have worked in Machine Learning for a few months then you should know answer to all of these questions but if you struggle to answer them then I suggest you to revise concepts by going through these best Machine Learning courses for beginners. They are great to learn and revise important Machine Learning concepts. 

Top 5 Free Git Courses for Programmers to Learn Online in 2022 - Best of Lot

One of my goals is to learn and master Git and Github this year and I have been searching for some good tutorials and courses to start with. The Internet is full of git tutorials and a simple Google search will leave you thousands of tutorials but the big question mark is where do you start? It's easy to pick a tutorial or a blog post if you have some background about what is Git, what it does? and how to use it but if you don't have much background then you need a course that can tell you all the information from the ground up. I personally like learning from a book or an online course before moving to blog posts as they were often well structured.

java.lang.UnsatisfiedLinkError: no dll in java.library.path - Cause and Solution

"Exception in thread "main" java.lang.UnsatisfiedLinkError: no dll in java.library.path" is one of the frustrating errors you will get if your application is using native libraries like the DLL in Windows or .SO files in Linux. Java loads native libraries at runtime from either PATH environment variable or location specified by java.library.path system property depending upon whether your Java program is using System.load() or java.lang.System.loadLibarray() method to load native libraries. If Java doesn't find them due to any reason it throws "java.lang.UnsatisfiedLinkError: no dll in java.library.path"

How to Fix java.lang.UnsatisfiedLinkError: lwjgl64.dll : Access Denied Error? Miecraft Solution

You can resolve java.lang.UnsatisfiedLinkError: lwjgl64.dll : Access Denied error in Minecraft by disabling your anti-virus and run. Later you can whitelist the lwjgl64.dll so that your anti-virus will not block it again. I have talked about java.lang.UnsatisfiedLinkError a couple of times on this blog e.g. here and here. But, today I am going to show you one more real-life example of java.lang.UnsatisfiedLinkError, which is more interesting. We'll also learn and how to deal with that. This problem is related to Minecraft, one of the most popular games written in Java. Precisely, we are going to solve the "Exception in thread "main" java.lang.UnsatisfiedLinkError: lwjgl64.dll: Access denied" error.

Top 10 Blender Online Courses to Learn 3D Modeling in 2022 - Best of Lot

Hello guys, if you want to learn Blender and 3D modeling in 2022 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 2022. 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 20 HTML Interview Questions with Answers for 1 to 3 Years Experienced

Hello guys, if you are preparing for web developer interview then you must prepare for HTML questions. HTML, CSS, and JavaScript is the backbone of web development and that's why every web develop is supposed to have good  knowledge of these three technologies. In the past, I have shared JavaScript Interview Questions and CSS Interview questions and today, I will share 20 HTML Interview Questions with answers for web developer interview. If you have done web development work then most likely you already know answers of these question but if you feel lacking then you can always go through these best HTML online courses to learn and revise concept in depth. 

Top 7 Python Data Structures and Algorithms Courses in 2022 - Best of Lot

Hello Python developers, if you want to learn Data structure and Algorithms in the Python Programming language and look for the best online courses, you have come to the right place. In the past, I have shared a lot of valuable resources like free data structure courses, books, and tutorials to learn Data Structure and Algorithms for programmers. I have also shared a lot of Algorithmic interview questions and their solutions in Java. Still, I have constantly been getting queries about good courses to learn Data Structure and Algorithms in Python and JavaScript. Even though the topics are completely independent of the programming language, Python developers definitely like the classes and books that teach Python's data structure and algorithms.

Spring Boot Error - Error creating a bean with name 'dataSource' defined in class path resource DataSourceAutoConfiguration

Hello guys, If you are using Spring Boot and getting errors like "Cannot determine embedded database driver class for database type NONE" or "Error creating a bean with name 'dataSource' defined in class path resource ataSourceAutoConfiguration" then you have come to the right place. In this article, we'll examine different scenarios on which this Spring Boot error comes and what you can do to solve them. The general reason for this error is Spring Boot's auto-configuration, which is trying to automatically configure a DataSource for you but doesn't have enough information. It is automatically trying to create an instance of DataSourceAutoConfiguration bean and it's failing.

Difference between WHERE vs HAVING clause in SQL - GROUP BY Comparison with Example

What is the difference between WHERE and  HAVING clause in SQL is one of the most popular questions asked on SQL and database interviews, especially to beginners? Since programming jobs, required more than one skill, it’s quite common to see a couple of SQL Interview questions in Java and .NET interviews. By the way unlike any other question, not many Java programmers or dot net developers, who are supposed to have knowledge of basic SQL, fail to answer this question. Though almost half of the programmer says that WHERE is used in any SELECT query, while HAVING clause is only used in SELECT queries, which contains aggregate function or group by clause, which is correct.

Top 5 Courses to Learn IntelliJIDEA and Android Studio IDE for Java and Kotlin Programmers in 2022 [Best & FREE]

There is no doubt that IntelliJ IDEA is THE best IDE for Java development, even though Eclipse may still be probably used by more people because it's FREE, IntelliJ IDEA is the most feature-rich and complete IDE. The Android Studio, which is the official IDE for Android development in Java, is also based upon IntelliJ IDEA, which further cement its place as the IDE Java developer should learn. The only thing which stops many other Java developers and me from moving from IntelliJ IDEA in the past was the lack of resources. Since Eclipse was free from the start, there are tons of resources, like books, courses, and tutorials are available. There are also a lot of resources to learn productivity tips, like keyboard shortcuts, and debugging techniques, but there were not many for IntelliJIDEA.

6 Best Blockchain Certification Courses for Beginners to Learn Online in 2022 | Coursera

Hello guys, if you are not living under a rock then you know that Blockchain is quickly becoming one of the leading technology, and the demand for skilled Blockchain developers and architects are increasing every passing day. There is no surprise that Blockchain has the biggest impact on the Finance domain and almost every big investment bank has its own research division on Blockchain they are also hiring Blockchain experts to build a competitive advantage over their rivals. This means, 2022 is probably the best time to learn Blockchain and become a Blockchain developer or architect. If you already made up your mind and one of your 2022 goals is to learn Blockchain Technology and become a Blockchain developer or architect and looking for the best online courses then you have come to the right place. 

Top 20 Spring Data JPA Interview Questions with Answers

Hello guys, if you are preparing for Spring and Java developer job interview and looking for common Spring Data JPA interview questions then you have come to the right place. Earlier, I have shared spring boot questions, spring cloud questions, spring security questions, and spring MVC questions and in this article, I am going to share 20 common Spring Data JPA questions with answers. These are simple questions focused on key Spring Data JPA concepts like finder methods, query methods, pros and cons of Spring Data JPA, how to implement Spring Data JPA repository interface etc. If you have done work or used Spring Data JPA in your project then most likely you will be familiar with those concepts but if not then don't worry, you can also checkout these Spring Data JPA courses to learn them in detail. 

Top 5 React and Redux Courses to Learn Online in 2022 - Best of Lot

If you are a Web developer or someone passionate about web development and looking for some awesome courses to learn React or React JS, a popular JavaScript framework to develop a component-based user interface then you have come to the right place. Facebook's React library has taken the front-end development world by storm. More and more people have started using React even in favor of Google's Angular, another popular front-end development framework. Well, I am not going into the classic debate of Angular vs React as both the framework has their own advantage and disadvantage but if you have chosen to learn React, you have made the right decision.

5 Machine Learning Best Books for Beginner in 2022

Hello guys, if you want to learn Machine learning in 2022 and looking for best resources like Machine learning best books, or machine learning best courses then you have come to the right place. Earlier, I have shared machine learning best courses and best python books for Machine learning and in this article, I am going to share best books to learn Machine Learning for Beginners in 2022. Machine learning and artificial intelligence are booming fields in today's world. This industry has made humanity life’s easier by automating tasks or improving things that we always need such as translation, fraud detection in money transactions, stock prediction before you make an investment and so much stuff that you couldn’t imaging.

Top 5 Spring MVC Online Courses for Beginners in 2022 - Best of Lot

Hello guy, Many of you have been asking me about the best online courses to learn Reactive Spring, Spring Boot, and Spring MVC. I have shared the best Spring Boot courses in the past, and today I will share the best courses to learn Spring MVC. Many Java developers think that Spring MVC is the same as Spring Framework, which confuses them. In this article, I'll try to answer than questions and share some of the best courses to learn Spring MVC for Java developers. Both Spring Core and Spring MVC are part of the same umbrella, a more significant spring framework project, but they are not the same.

Top 5 Online Courses for Content Creators and Instructors in 2022 - Best of Lot

There is something about content creation like online training courses that makes learning so easy. They are affordable, convenient, and accessible everywhere. More and more programmers, bloggers, and experts are now teaching online so that now there are so many high-quality courses available on the internet to learn almost anything. It wasn't like that a couple of years ago when books and tutorials were the primary resources for learning new skills, but there is a huge potential still for both learners and creators when it comes to creating and selling online courses. You can easily make 10K USD per month by selling online courses and more importantly can make a difference in people's life.

Why Programmers & Software Engineers Should Create Online Courses in 2022? [Side Project]

I often receive queries like should programmers create an alternative source of income, or should programmers create their own blog or website? Both are fundamental questions, and there was a time when I advise programmers to create their own blog, not just to learn and improve their understanding of the technology they know, but also to earn money while doing things they love, but time has changed. Now I advise Programmers and Software Developers to create and sell online courses on Teachable, Thinkific, PodiaUdemy, or any other platforms. The reasons are still the same, you learn and earn, but the method has been changed. A blog is always an excellent way to establish yourself online, but it requires a lot more effort and time to earn something meaningful.

Top 5 Free Data Structure and Algorithm Courses for Java and C Programmers

Data Structure and Algorithm is one of the essential topics for programmers, both to get a job and do well on Job. Good knowledge of data structure and algorithm is the foundation of writing good code. If you are familiar with essential data structures like an array, string, linked list, tree, map, and advanced data structure like Tries, AVL trees, etc and know when to use which data structure and compute the CPU and memory cost of your code in terms  Even though you don't need to write your own array, linked list or hashtable, given every major programming SKD provides them like JDK or C++ STL library, you will need to understand them so that you can use them in right place. Using the right data structure can drastically improve the performance of an algorithm.

What is CyclicBarrier in Java? How and When to use CyclicBarrier with Example? Tutorial

What is CyclicBarrier in Java
CyclicBarrier in Java is a synchronizer introduced in JDK 5 on java.util.Concurrent package along with other concurrent utility like Counting Semaphore, BlockingQueue, ConcurrentHashMap, etc. CyclicBarrier is similar to CountDownLatch which we have seen in the last article  What is CountDownLatch in Java and allows multiple threads to wait for each other (barrier) before proceeding. The difference between CountDownLatch and CyclicBarrier is also a very popular multi-threading interview question in Java. CyclicBarrier is a natural requirement for a concurrent program because it can be used to perform the final part of the task once individual tasks are completed.

Top 3 Courses for Blockchain Developer in 2022 - Best of Lot

Hello guys, if you are looking for best online courses to become a Blockchain developer then you have come to the right place. Earlier, I have shared best Blockchain courses, books, websites, and best Blockchain certification and today, I will share the best online courses you can join to learn essential skills and become a Blockchain Developer. These are also the best Coursera courses you can join to become a successful Blockchain Programmer. It not only cover Blockchain and Cryptocurrencies but also Python, Git, and other essential development skill you need to become a successful Blockchain developer in 2022.  But, before we get to the best courses that will teach you everything you need to know about blockchain, let me tell you what it really is.

Top 5 Courses to Learn Software Architecture for Experienced Programmers in 2022 - Best of Lot

Every Programmer wants to grow in their career, but it's not easy, and if you don't pay attention to your job, you will likely stay in the same position for many years. The growth in the initial few years is generally fast. Still, once you reach the barrier of 5 years, you need to decide which direction you want to move like - people management, product management, or software architecture. For tech guys, who don't want to go on people and product management, software architecture or solution architecture is the final position, which is not surprising. If you want to be close with coding and technical discussions, like to try new technologies, and want to use them in your organization to solve a challenging problem, software architect and solution architect is an excellent position to be in.

Top 5 Software Platforms to Create and Sell Online Courses in 2022 - Best of Lot

Hello guys, if you are an online course creator, instructor, or blogger looking for best software and online platform to create, and sell your online courses then you have come to the right place. In the past, I have how shown you how to create online course for FREE and In this article, I am going to share the best software to create and sell your online training courses. You will learn about the best online teaching Software and platforms like Teachable, ThinkificUdemy, and Podia and analyze them to find out which is best software for creating and selling online courses. Online Course business is becoming bigger and bigger with so many bloggers, professionals, programmers are creating online courses and making good money. It's a new avenue for passive income creators and I think it's one of the best I know. Why? because it's a win-win for everybody.

How to Create Online Course for FREE? Best Tools, Software and Platforms

Hello guys, I have been telling my readers and fellow programmers to create an online course in 2022, and many of them have already started planning their courses. Though, one question which keeps coming to me is how you can create an online course for free? This is an obvious question, and after answering many of my readers over Facebook chats and emails, I decided to write a blog post about it so that everyone else who wants to create an online course for free can create and sell online courses for free without any investment except time and passion can benefit. But, before answering this question, let me first congratulate you on making an excellent decision to create an online course, the best win-win situation where everybody involved in this process wins.

Top 6 Courses to Learn Spring Framework in Depth in 2022 - Best of Lot

Spring Framework is an essential skill for Java developers, not only to get a job as a Java developer but also for your career advancement. Since Spring is now used in almost every Java project, it becomes virtually mandatory to learn the Spring framework. Now, the question comes, what is the best way to learn the Spring framework? Are there any online courses out there that are focused on Spring? What are some good books and resources for learning Spring? These questions are widespread among Java developers, and I often see them on forums, online chat channels, and even many of my readers also ask this to me on Facebook chats and email. Well, the best way to learn any technology is by coaching, online courses, and books.

Top 20 System Design Interview Questions with Answer

Hello guys, if you are preparing for FAANG or any Software developer Job Interview on Startup or a Tech company like Spotify, Flipkart, or Zoom but worried about System design questions then you are not alone. System design is an intimidating topic and requires a lot of study and experience to design a real world system. While it's not a rocket science the knowledge of different system design components and concepts are hard to acquire. In the past, I have shared best System Design Courses and best Software architecture courses as both are related to each other and in this article, I am going to share 20 System Design Interview Questions with answers for programmers with zero to 3 years of experience. 

Top 10 Java Programming Books - Best of lot, Must Read

These top Java programming books are some of the good books to learn Java and I would say some of them are simply the best Java books ever published. Whenever a programmer starts learning Java programming language, the first question he asks is "Which book should I refer to learn Java?", or "What is the best book to learn Java for beginners?" or "Can you tell me some good books to learn Java?" .That itself says how important Java books are for programmers especially beginners.  Despite having so many free resources available in Java, like tutorials, online courses, tips, blogs and code examples, Java books have their own place because of two reasons:
  • They are written by programmers who are the authority in the subject
  • They cover the subject with more details and explanation.

Is "Java Concurrency in Practice" Still Valid in the Era of Java 17?

Hello guys, one of my reader Shobhit asked this question on my blog post about 12 must-reads advanced Java books for intermediate programmers - part1. I really like the question and thought that many Java programmers might have the same doubt whenever someone recommends them to read Java Concurrency in Practice. When this book came first in 2006, Java world was still not sure of about new concurrency changes made in Java 1.5, I think the first big attempt to improve Java's built-in support for multi-threading and concurrency. Many Java programmers were even not aware of new tools introduced in the API like CountDownLatch, CyclicBarrier, ConcurrentHashMap, and much more. The book offered them the seamless introduction of those tools and how they can use them to write high-performance concurrent Java applications.

Coursera Review - Is Meta Social Media Marketing Professional Certificate worth it?

Hello guys, if you want to learn about social media marketing and looking for best online courses and training program then you have come to the right place. Earlier, I have shared best Twitter Marketing courses, best Instagram Marketing Courses, and best Facebook Marketing course and today, I will review one of the most popular Social Media marketing training program on Coursera, Facebook or Meta's Social Media Marketing Professional Certificate.  If you have a business and you are worried about getting an audience or loyal customers or maybe even brand awareness for your brand, then social media marketing is one of the best solutions for you. 

Top 5 Free Java Courses for Beginners to Learn Online in 2022 - Best of Lot

We all love free resources, don't we? If you want to learn Java online in 2022 and looking for the best free core Java online courses then you have come to the right place. Earlier, I have shared the best Java courses for beginners and in this article, I am going to share the best free courses to learn Java online. There was a time when I buy a lot of books when I was preparing for my engineering entrance exam but I only ended up buying books not reading them. After that, I changed my habit to first try to read a book on loan or try free resources and only buy when I really need them. When I started my programming journey, mostly I learn from free resources like free courses and books and there I developed the passion to collect free resources as well. 

How to use Exchanger for Sharing Objects between Threads in Java? Example Tutorial

Hello guys, if you are working in a concurrent Java application then you might have heard about the Exchanger class of java.util.concurrent package. The Exchanger in Java is another concurrency or synchronization utility introduced in Java 1.5 along with CountDownLatch, CyclicBarrier, and Semaphores. As the name suggests, the Exchanger allows two Threads to meet and exchange data at the rendezvous or meeting point. This means you can use Exchanger to share objects between threads and for inter-thread communication. The java.util.Exchanger is a parametric class, which defines and holds the type of object to be exchanged. It has an overloaded method called the exchange(), which is used to exchange objects between threads.

Top 10 Courses to Learn Metaverse online in 2022 - Best of Lot

Hello guys, if you want to learn about Metaverse and looking for best online courses then you have come to the right place. Metaverse, Web3, and NFT are three buzz words and latest tech which is dominating  internet at the moment. Earlier, I have shared best NFT online courses and in this article I am going to share best Metaverse online courses for beginners to learn in 2022.  But, before we get to the 10 best courses that you can use to learn everything you need to know about Metaverse, let me tell you what it really is.

6 Free DevOps Courses for Experienced Developers in 2022 - Best of Lot [UPDATED]

Hello Java Programmers and developer friends, If you are an experienced developer and want to become a DevOps Engineer or just want to learn the DevOps process and tools to improve your development and delivery process and looking for free DevOps online courses to kickstart your journey, then you have come to the right place. Earlier, I shared the best DevOps books and training courses, and today, I will share the best free online lessons to learn about DevOps. These free courses are created by experts and trusted by thousands of developers and they will teach you DevOps concepts, practice, DevOps tools like Docker, Jenkins, Ansible, and Kubernetes and suitable for both beginners and experienced developers. They are also curated from popular online learning platforms like Udemy, Pluralsight, and Coursera, and they offer practice and hands-on training.

Top 5 Java Design Pattern Courses for Experienced Java Developers in 2022 - Best of Lot

Hello guys, today, we'll talk about design patterns and some of the best online courses to learn design patterns in Java from scratch. If you are wondering what is a design pattern and why Java developers should learn them? then let me give you a brief overview. Design patterns are nothing but a tried and tested solutions of common programming problems, for example, the creational design patterns deal with the problems of object creation. They exist from a long time but made popular by famous Gang of four of Erich Gamma, John Vlissides, Ralph Johnson and Richard Helm in their classic 1994 book Design Patterns: Elements of Reusable Object-Oriented Software, also known as GOF design patterns. This book documented 24 design patterns which are reusable to solve common programming problems. 

5 Free Java Multithreading Courses for Beginners and Experienced in 2022 - Best of Lot

Hello guys, if you wan to learn multithreading and concurrency in Java and looking for free resources like online courses and tutorials then you have come to the right place. Earlier, I have shared free Java Courses and free Spring Framework courses and today, I will share best free online courses to learn Multithreading in Java. Multithreading is one of the important skill for Java programmers as companies are always in hunt of Java programmer who are good at multithreading and concurrency but at the same time its very hard topic to master. Acquiring concurrency skill require a lot of hard worked and years of experience but you can speed up by joining best Java multithreading courses and learning from expert.

Inter Thread Communication in Java using wait() and notify() - Example Tutorial

Wait and notify methods in Java are used for inter-thread communication i.e. if one thread wants to tell something to another thread, it uses notify() and notifyAll() method of java.lang.Object. A classical example of the wait and notify method is a Producer-Consumer design pattern, where One thread produces and put something on the shared bucket, and then tell the other thread that there is an item for your interest in a shared object, consumer thread than pick than item and do his job, without the wait() and notify(), consumer thread needs to be busy checking, even if there is no change in the state of the shared object.

Coursera Review - Is Google Data Analytics Professional Certificate Worth it?

Hello guys, if you want to become a Data Analyst in 2022 and looking for best online courses, guides, and tutorials to learn Data Analysis then you have come to the right place. In the past, I have shared best Data Analysis courses, Books, and 2022 Data Analyst RoadMap, and in this article, I will share one of the most popular Coursera course to learn Data Analytic, Google Data Analytics Professional Certificate. With more than 800,000 enrollments on Coursera this is one of the most popular Data Analytics course on Coursera and why not? Its created from Google itself. It's also well structured, up-to-date and you will learn all essential Data Analytics skills from Google experts. 

Top 10 Free Courses to Learn Python in 2022 - Best of Lot

There is no doubt that Python is currently the world's #1 programming language and the biggest advantage of that is it's bringing more and more people into the programming world. In recent years, I have seen more people learning Python than any other language, yes, not even JavaScript. Many of them learning Python to explore some awesome Data Science and Machine learning libraries provided by Python. Some people are also learning Python for web development and there are still many developers who are learning Python for scripting and automating trivial tasks. It doesn't matter why you are learning Python at this moment, it's a great thing in itself that you have decided to learn Python.

Top 5 Free Online Courses to learn Linux and Ubuntu in 2022 - Best of Lot

Hello guys, if you want to learn Linux and Ubuntu Operating system in 2022 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 courseswebsites, 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

Coursera Review - Is Django For Everybody Specialization Worth it?

Hello guys, if you are looking for best Coursera course to learn Django or just wondering whether to join Django for Everybody specialization on Coursera or not, you have come to the right place. In the past, I have shared best Django Courses and best Python web Development Courses and in this article, I will review Coursera's popular Django course, Django for Everybody specialization by University of Michigan USA. This course is created by none other than Charles Russell Severance, instructor of Coursera's most popular Python for Everybody specialization which is trusted by millions of learners worldwide.

[Solved] How to Remove a Character From String in Java ? Recursion Example

Hello guys, if you are wondering how to remove a given character from a String in Java then you have come to the right place. In the past, we have solved many common String coding problems like String anagram check, String Palindrome check, and String permutation and in this article, you will learn how to remove a given character from a String in Java. Basically, you need to write a program to remove a given character from String in Java. Your program must remove all occurrences of a given character. For example, if given String is "aaaaa" and String to remove is "a" then the output should be an empty String. Similarly, if input String is "abc" and character to remove is "b" then your program must return "ac" as output. 

Udemy vs CodeCademy vs OneMonth? Which is the best place to learn coding with Python in 2022?

Online learning, particularly online courses, has completely changed the way people learn things as whoever I speak from beginner to professionals; everyone seems to prefer learning online. The current global situation has also accelerated the need for online learning. This is a nice change, but, with so many choices available, there is also a lot of confusion which often pops up when I discuss with my readers. One question which has been kept coming in the past is which platform to choose for learning online? CodeCademy, Udemy, or OneMonth? This is the most common question among all beginners mind who have just started to learn coding and programming online.

Why Java Programmers Should Learn Docker and Kubernetes in 2022

Hello Java Programmers, if you are looking to learn some in-demand software tools to improve your profile, then you have come to the right place. Earlier, I have shared the best tools for Java developers, and today, I am extending it to all developers. long with Docker, if there is another tool or technology which has caught software developers' attention in recent times then it must be Kubernetes.  Actually, it's often mentioned alongside Docker because it takes what Docker offers to the next level.  If you don't know what is Docker and Kubernetes let me give you a brief overview before going deep into why every programmer should learn Kubernetes. In simple words, Docker is a container and Kubernetes is a container orchestration tool, something which can do creating, destroying, and managing containers at scale.

Top 50 Programming Interview Questions with Answers for 1 to 3 Years Experienced

For the last few years, phone interviews also known as the telephonic round is the single most popular way to screen candidates in a programming job interview. It's easy for both parties to gauge each other, the candidate doesn't need to travel to the prospective Employer's premises and the Interviewer also doesn't need to make any necessary arrangements. This is the second part of my article on programming interview questions, in the first part, I got feedback that it is a little bit heavy on coding-based questions and many programmers asked me to share a similar list for the telephonic round of programming Interviews. In order to clear the telephonic round and proceed to the next round, you must be good enough to answer all the questions related to your Job description.

Coursera Plus Review - Should you Learn on Coursera in 2022? It it worth it?

Hello guys, As a programmer, we always need to learn new skills, frameworks, technologies, and libraries, and we often end up buying so many courses for that; I know people who have more than 300 courses on Udemy and other online courses platforms, but Coursera now has a better way, Coursera Plus. This is a subscription plan for Coursera courses and specializations, which will provide you access to their 5000+ courses, guided projects, specialization, and professional certificates with just one subscription. It costs around $390 per year or $59 per month, which may sound more than other subscription and membership online learning portals like Pluralsight and CodeCademy, but Coursera provides certificates and courses worldwide reputed universities which no one else.

Coursera - DeepLearning.AI TensorFlow Developer Professional Certificate Review

 Hello guys, if you are learning TensorFlow for AI and Machine Learning and looking for best resources to learn TensorFlow in depth then you have come to the right place. Earlier, I have shared best TensorFlow courses for beginners and in this article, I am going to review, one of the top TensorFlow Course from Coursera, DeepLearning.AI TensorFlow Developer Professional CertificateThis is one of the popular and well structure Coursera course to learn TensorFlow and earn a certificate and we will review this to find out whether its really worth it or not.

3 ways to learn Python Programming and Coding in 2022 - Best of All

Hello guys, if you want to learn Python Programming language in 2022, one of the most popular programming language of this time but are not sure where to start then you have come to the right place. In the past, I have shared many Python resources like best Python Books, Courses, Projects, interview questions, and even best places to learn Python and  In this article, I am going to share with you the 3 best ways to learn Python programming from scratch. These are my tried and tested way to master any programming language or Framework and I have used this to learn Java, Python, JavaScript and many other technology. 

Top 5 Courses to learn Operating System (Linux, Windows, Mac) in 2022 - Best of Lot

Hello guys, if you are a computer science beginner or a self-taught developer looking to learn Operating System fundamentals, then you have come to the right place. I have been sharing Computer fundamental courses in the past like these data structure and algorithms courses and these computer science courses. In this article, I will share the best online courses to learn Operating Systems for Beginners. The operating system is the most important piece in any laptop, phone, or IoT device. Without this piece, your device is only a junk box; no more than that except some hardware that does nothing on a motherboard. 

10 Tools Every Software Developer/Programmer Should Learn [UPDATED]

Every trade has its tools, and software development is no different. A good programmer or software developer generally knows their tools better than others and also has access to more powerful and advanced tools than an average programmer, but there are certain tools that you expect every software developer should know, and this list is all about such tools. In this list, I am going to share 10 essential tools, which I believe every programmer or software developer should know and know well.

Review - Is Web Applications for Everybody Specialization on Coursera Worth it?

Hello guys, if you are looking for an amazing course to start your web application development career or you are looking for great web development course on Coursera, or you are thinking whether Web Applications for Everybody Specialization is worth it or not then you have come to the right course. In the past, I have shared best web development courses form Coursera and in this article, we will review this course. Every company needs a website to run their business and connect with customers and companies. Nowadays, technical people can do that and program the website with complex functionalities, but people from non-technical backgrounds can use some services to make a shopping website. What if your website has some complex functionalities to perform other than just a simple web page.

Top 5 NoSQL Databases Programmers Should Learn in 2022 [UPDATED]

Though it's not mandatory for Java or Web developers to learn the NoSQL database, the world is moving in that direction, and both Java and Web developer should be familiar with NoSQL databases. If you are wondering what a NoSQL database is means, then here is a quick overview. A NoSQL database refers to non SQL, non-relational, or not only SQL) that provides a mechanism for storage and retrieval of data, which is modeled in means other than the tabular relations used in relational databases. With Spring 5 introducing Web-Flux, a new non-blocking web framework, the use of a NoSQL database will only grow, but the big question is which NoSQL database to start with?

10 Reasons to Learn Scala Programming Language in 2022 [UPDATED]

One of the questions my reader often ask me is, should Java developers learn Scala? Does Scala has a better future than Java, or why Java developer should learn Scala, and so on. Well, there can be many reasons for learning Scala, like you are forced to learn because it has been used in the new company you joined or your solution architect decided to use it, but that's a different story. Here, we'll talk about the reasons which encourage Java developers to learn Scala.  Scala has emerged as one of the most powerful Java alternatives in recent times. It's been the JVM language of choice, leaving Groovy and Clojure way behind, and preferred as the language people want to write most code in.