VMware Spring Professional 2021 Certification Questions - [VMware EDU-1202 FAQ]

If you are a Java developer, working in the Spring framework and thinking to become a certified Spring professional but couldn't do it in the past due to expensive mandatory training provided by Vmware and its partners then there is good news for you. From 10th May 2017, Pivotal (the company behind Spring framework) made the Spring Core training optional for appearing to the Spring certification exam, which means, now, it's not mandatory to take Spring training for Spring certifications (see here). Similar to Oracle's Java certifications, you can become a Vmware Certified Spring Professional by just buying the exam vouchers and scheduling your exam online using examlocal.com from anywhere in the world.

Top 5 Free DevOps Courses to Learn Online in 2021 - Best of Lot

Hello Java Programmers and developer friends, If you 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 have shared the best DevOps books and DevOps training courses, and today, I will share the best free online courses to learn about DevOps. These free courses are created by experts and trusted by thousands of developers. They have been chosen from popular online learning platforms like Udemy, Pluralsight, and Coursera and they offer practice and hands-on training.

Spring Hello World Example in Java using Dependency Injection

Hello All, In this Spring framework tutorial, you will learn how to write the hello world example in the Spring framework. This should be your first tutorial to start learning the Spring framework, as it gets the ball rolling. While coding and running this example, you learn a lot about the Spring framework, Spring XSD files, necessary JAR files, and more importantly how the Spring framework works. This HelloWorld program in Spring framework is an extension of the classical Java hello world program, which you might have seen earlier. This program is written using the Dependency Injection design pattern by using the Spring Framework's IOC container.  Even though now you can configure Spring dependency using annotations and Java configuration, this example uses a traditional XML way to configure dependencies.

Top 5 Online Courses to learn CSS [Cascading Style Sheet] in Depth in 2021 - 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 2021.

How Spring MVC Makes Easy to Create RESTful Web Services in Java

REST has now become a standard way to develop web services and when it comes to Java, there are many frameworks and libraries available like JAX-RS, Restlet, Jersey, RESTEasy, Apache CFX, etc, but I encourage Java developers to use Spring framework to develop RESTful web services. But, some of you might ask, why use Spring Framework to develop RESTful web services in Java? What is the advantage and why it's better than other frameworks and libraries available out there? Well, the most important reason I think to use Spring for developing RESTful web service is that you can use your Spring MVC experience to develop RESTful web services.

Top 10 C++ Online Courses to Learn C Plus Plus for Beginners in 2021 - Best of Lot

Hello guys, If you want to learn C++ and looking for some awesome courses and books then you have come to the right place. Earlier, I have shared the free C++ courses and best C++ books for advanced programmers and In this article, I am going to share some of the best courses to learn C++ from scratch. These are the truly great courses from Udemy, Coursera, Pluralsight, and Educative and you can join them to learn C++ online from your home. If you are new to the programming world or have been coding for some time then you know that C++ is one of the most popular and widely used programming languages. It was the first major object-oriented programming language that was used widely by the software development industry as well as in Academia.

How to use @SpringBootApplication in Java and Spring Boot [Example]

Hello guys, today, we'll learn about the @SpringBootApplication annotation, one of the most important annotations from the popular Spring Boot framework, which has changed the way Java developers use the Spring framework for writing Java applications. In this article, I'll explain to you the meaning of @SpringBootApplication and its use in a simple Spring Boot application. We use @SpringBootApplication annotation on our Application or Main class to enable a host of features e.g. Java-based Spring configuration, component scanning, and in particular for enabling Spring Boot's auto-configuration feature.

Top 10 Edureka Online Training Certification Courses to Join in 2021 - Best of Lot

Hello guys, if you are looking for the best Edureka courses to join in 2021 then you have come to the right place. Earlier, I have shared the best Udemy courses and best Pluralsight courses and in this article, I am going to share the best Edureka certification courses to join in 2021. If you like online classroom training then you may hear about Edureka, the leader in online live classroom training. Online classroom training is a bit different than online courses as you will get an opportunity to interact with instructor live, it's much more closer to traditional classroom learning in school and colleges than online courses.  Because of this unique teacher-student interaction, online classroom teaching is getting more and more popular every passing day. 

Top 5 Courses to Learn R Programming for Data Science and Statistics in 2021 - Best of Lot

Hello guys, if you are interested in Data ScienceMachine 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 5 Books to Learn Spring Boot and Spring Cloud for Java Developers - Best of Lot

Hello guys, if you are a Java developer and want to learn Spring Boot and Spring Cloud frameworks and looking for some of the best books and courses, then you have come to the right place. In the past, I have shared some of the best Spring Boot courses and Spring Cloud courses, and today I am going to talk about some of the best books to learn Spring Boot and Spring Cloud, but before that let's try to understand what is Microservice and how Spring Boot and Spring Cloud helps with the development of microservices in Java. In simple words, Microservices is nothing but an extension of RESTful web services with the fundamental idea to break up your code into small, distributed, and independent services for better scalability and management, but it does require thoughtful design and think through ability.

[2021 Udemy Course Review] - Java Programming Masterclass for Software Developers By Tim Buchalaka

Hello guys, if you want to learn Java Programming from scratch and looking for the best Java course to join then you have come to the right place. Earlier, I have shared the best Java Programming courses, and today, I am going to review Java Programming Masterclass for Software Developers by Tim Buchalaka, one of the highest-rated Java courses from Udemy. This course was also known as The Complete Java Masterclass before. I have mentioned this course multiple times throughout different articles because it's currently the best course to learn Java. It's both comprehensive and up-to-date and most importantly it's very cost-effective. You can buy this 80-hour comprehensive course for just $10 which is just amazing. 

10 Examples of JdbcTemplate in Spring Framework for Java Programmers

Hello Java programmers, If you have been using the Spring framework then you may know that the JdbcTempalte is one of the most useful classes of the Spring framework. The JdbcTempalte class provides lots of convenient methods for performing database-related tasks that take the pain away from using the JDBC API. If you have worked in any real-life JAva project which connects to a Database using JDBC then you know that JDBC API is not very convenient to use as it requires a lot of boilerplate code. For example, to execute a simple SELECT query, you first need to create a Connection and Statement object to execute the query and iterate through a ResultSet Object to get the result of the query. Finally, you need to close all of these resources to prevent resource leaks in Java.

Top 5 Online Courses to learn Selenium WebDriver with Java in 2021 - Best of Lot

Hello guys, Selenium is a popular choice for those interested in automating tests done in web browsers. It is an open-source tool and a Java framework, which means that it is free to use, redistribute, and even you can change what you want to make the software available to anyone who uses it. If you want to become an Automation tester or just want to learn Selenium for writing automation tests with Java in 2021 to add a new and in-demand skill in your resume, and looking for online courses then you have come to the right place Earlier, I have shared free courses to learn Selenium Web Driver and in this article, I am going to share 5 best Selenium online courses for beginners and experienced Java  Programmers and automation testers.

How Spring MVC Framework works? How HTTP Request is processed?

One of the frequently asked Spring MVC Interview questions is about explaining the flow of web requests i.e. how an HTTP request is processed from start to end. In other words, explaining the flow of requests in Spring MVC. Since many of my readers ask this question time and again, I thought to summarize the flow of request processing in a short article. It all starts with the client, which sends a request to a specific URL. When that request hits the web container like Tomcat it looks into web.xml and finds the Servlet or Filter which is mapped to that particular URL. It the delegate that Servlet or Filter to process the request. Since Spring MVC is built on top of Servlet, this is also the initial flow of requests in any Spring MVC based Java web application.

Top 6 Online Courses to Learn Computer Science Fundamentals in 2021 - 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. 

3 Ways to Learn Spring Core, Spring MVC, Spring Security, and Spring Boot Framework

If you are a Java developer and want to learn the Spring framework then you have come to the right place. In this article, I will share three ways to learn the Spring framework, but before that let's understand what is a spring framework and why Java developers should learn Spring framework? Well, Spring is a framework that assists you to develop Java applications by following some best practices, particularly the principle of dependency injection and inversion of control. As per this principle, instead of the class asking for its dependency, the framework provides them at runtime.  Following these principles improves your code quality because it reduces coupling between different parts of your applications like between modules and classes, which makes it easier to test and develop.

Udemy Course Review - The Complete JavaScript Course 2021: Build Real Projects By Jonas Schmedtmann

Hello guys, if you want to learn JavaScript in 2021 and looking for the best resources like an online course, or want to join The Complete JavaScript Course 2021: Build Real Projects by Jonas Schemedtmann on Udemy but not sure then you have come to the right place. Earlier, I have shared the best JavaScript courses for beginners and in this article, I am going to review one of my favorite JavaScript courses, The Complete JavaScript Course 2021: Build Real Projects from Udemy. This is one of the truly best and up-to-date courses to learn modern JavaScript in a hands-on way with building projects and applying the knowledge you learn in theory lectures. 

Top 8 Python Libraries for Data Science and Machine Learning - Best of Lot

Hello guys, today I am going to talk about something which is not related to Java but a very interesting technology development that is happening around, and you simply can't afford to miss out on this opportunity. Yes, you guessed it right, I am talking about Machine learning, Artificial Intelligence, and Deep Learning. There is a good chance that you might have already heard about them and even started learning them. You may be either from Python camp or learning R programming for the sake of machine learning. When I started my journey of Machine learning and Data Science, I had to first make a choice about choosing the right programming language as both R and Python were doing great.

Top 5 Free Courses to learn Oracle Database and SQL Online in 2021 - Best of Lot

Hello guys, if you want to learn Oracle SQL and looking for free online courses then you have come to the right place. Earlier, I have shared the best SQL and Database courses and books, and today, I am going to share free Oracle SQL courses for beginners. These are free courses from Udemy, Pluralsight, Coursera, and other reputed online learning websites. They are made free 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. 

Java HashMap ContainsKey and ContainsValue Example

Hello guys, one of the common problems many Java developers working with HashMap face is how to check if the Map contains a particular key or value? You can use this to check duplicate keys or just to ensure that you are not overriding the current value because if you insert a key that already exists in the HashMap, then you end up overriding its value. Since HashMap also allows duplicate values, it's also possible that the same value may be paired against multiple keys, so just removing a mapping may not be enough to remove that particular value. Not paying attention to these details has actually caused issues in the Java applications.

Top 5 Online Course to Learn Microsoft Excel in 2021 - Best of Lot

Hello guys, If you are learning Microsoft Excel or want to learn Excel and looking for the best online courses then you have come to the right place. In the past, I have shared some advanced Excel courses to learn things like VBA and Macros and in this article, I am going to share more all-around Excel courses to learn Microsoft Excel in depth. These are the best MS Excel courses from sites like Udemy, Pluralsight, and Coursera, and thousands of programmers, developers, tech, and non-tech people have joined these courses to learn this useful skill and you can do the same. Microsoft Excel is one of the most essential tools for IT professionals. It's not only the most common spreadsheet tool but also offers powerful charting and analytical capability.

How to Create a thread-safe ConcurrentHashSet in Java 8? [Example]

Until JDK 8, there was no way to create a large, thread-safe, ConcurrentHashSet in Java. The java.util.concurrent package doesn't even have a class called ConcurrentHashSet, but from JDK 8 onwards, you can use the newly added keySet(default value) and newKeySet() methods to create a ConcurrentHashSet backed by ConcurrentHashMap in Java. This is better than old tactical solutions like using a concurrent hash map with dummy value or using the set view of the map, where you cannot add new elements. The Set returned by keySet(defaultValue) and newKeySet() methods of JDK 8 is a proper set, where you can also add new elements along with performing other set operations like contains(), remove() etc.

Top 5 Courses to Learn Ethical Hacking in 2021 - Best of Lot

Hello guys, if you want to learn Ethical Hacking in 2021 and looking for the best resources like online courses then you have come to the right place. Earlier, I have shared the best Cyber Security courses and in this article, I have shared the best Ethical Hacking courses for beginners and experienced IT professionals. If you don't know, Ethical hacking is the process of testing the infrastructure of your system or network for vulnerabilities and locating its weaknesses in order to close those vulnerabilities and make your systems more secure. This is very in-demand skills and there is a lot of job for Ethical hackers as companies, both big and small are grappling with security threats and they always looking to find and close any vulnerabilities they might have. 

Top 20 Libraries and APIs Java Developer should Learn [UPDATED]

One of the traits of a good and experienced Java developer is the extensive knowledge of API, including JDK and third-party libraries. I spent a good deal of time learning API, especially after reading Effective Java 3rd Edition, where Joshua Bloch has advised us to use existing API for development rather than writing new pieces of code for common stuff. That advice making sense to me because of the testing exposure these 2nd party libraries get. In this article, I am going to share some of the most useful and essential libraries and APIs, a Java developer should be familiar with. Btw, I am not including frameworks like Spring and Hibernate because they are pretty well known and have specific features.

Top 5 Courses to Learn Redhat OpenShift in 2021 - Best of Lot

Hello guys, if you want to learn the RedHat 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 2021. 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.

Review of Udemy Best React Complete Guide Course by AcadMind and Maximillian Schwarzmuller

If you want to learn React.js and looking for the best online course to join or want to learn more about React - The Complete Guide Udemy course then you have come to the right place. Earlier, I have shared the best React and Redux courses and in this article, I am going to review, Udemy's best React course, React - The Complete Guide (incl Hooks, React Router, Redux) by Maximillian Schwarzmuller and AcadMind. This 72-hour long course is one of the best resources for people wanting to learn to React and Max has just re-recorded all lessons making it the most up-to-date course to learn to React.js library in 2021. 

Top 10 Java ConcurrentHashMap Interview Questions with Answers [UPDATED]

The ConcurrentHashMap class part of concurrent collections package added on JDK 1.5 which contains utility classes like BlockingQueue, CopyOnWriteArrayList, CopyOnWriteArraySet etc. It is a replacement of synchronized hash-based map implementations e.g. Hashtable and synchronized HashMap. It implements Map and ConcurrentMap (a sub-interface of Map) interface which allows you to store key-value pairs. The class is similar to HashMap or Hashtable but it's more scalable and the right fit for concurrent Java application. Unlike Hashtable which achieves its thread-safety by compromising the scalability, ConcurrentHashMap uses advanced techniques e.g. dividing the map into segments to remain thread-safe and scalable at the same time.

Top 5 Courses to improve Coding and Refactoring skills in Java in 2021 - Best of Lot

Hello guys, if you want to improve your coding skills, learn to refactor, and other coding best practices,  and looking 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 have shared the best design pattern courses and best Data Structure and Algorithms courses, and today, I am going to 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. 

Java 9 Factory Methods for Collections Example - Creating Unmodifiable List, Set, and Map

Hello guys, this is my first article in Java 9 features on this blog, and today you'll learn about my favorite feature "factory methods for collection", which is introduced as part of JEP 269. The JEP stands for the JDK enhancement proposal. If you have worked in Groovy or Kotlin then you know that how easy is to create the list with elements using collection literals e.g. to create a list of 1, 2, 3 you can simply write val items = listOf(1, 2, 3). Unfortunately, Java doesn't support that yet but things have been improved with the factory methods for collection in JDK 9 and it's almost like that. JDK has added static factory methods like of() on to basic Collection interfaces which you can use to create a list of items.

5 Best Online Courses to Learn Data Structure and Algorithms in Python [2021]

Hello guys, if you want to learn Data structure and Algorithms in the Python Programming language and looking for the best online courses then you have come to the right place. In the past, I have shared a lot of useful 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, but I have been constantly getting queries about good courses to learn Data Structure and Algorithms in Python. Even though the topics are completely independent of the programming language, Python developers definitely like the courses and books which teach Data Structure and Algorithms in Python.

How to Create an Array of Prime numbers in Java [ Sieve of Eratosthenes Algorithm Example]

Hello guys, I have said many times that a good knowledge of Data Structure and Algorithms is the first step towards becoming a better programmer and that's why I share a lot of Data structure and Algorithm stuff in this blog. To continue the tradition, I am going to share an interesting algorithm today, The Sieve of Eratosthenes algorithm, which can be used to generate prime numbers up to a given number. There are many occasions when you need to generate all prime numbers up to a specified integer and one algorithm which is most often used to generate prime numbers is the Sieve of Eratosthenes Algorithm. Surprisingly, not many developers know about this algorithm, particularly Java programmers, which is mainly because of not doing enough competitive programming.

The Complete Python Developer in 2021:Zero to Mastery by Andrei Neagoie [Udemy Course Review]

Hello guys, if you want to learn Python in 2021 and looking to join The Complete Python Developer in 2021:Zero to Mastery course by Andrei Neagoie on Udemy or ZTM Academy but not sure then you have come to the right place. Earlier, we have shared the best Python 3 Courses to join in 2021 and today's article covers a review of one of the best online courses to learn the python programming language in 2021 for absolute beginners with no prior experience needed to start. This is a comprehensive course with almost 31 hours of content and also one of the most up-to-date courses to learn Python on Udemy. 

Review of Coursera's Deep Learning Certification By Andrew Ng - Is it worth it?

Hello guys, if you are looking for the best Deep learning course online or thinking to join Deep Learning Specialization by Andrew Ng on Coursera but thinking whether it's worth your time and money or not then you have come to the right place. Earlier, I have shared the best Coursera courses for Data Science,  Machine Learning, and Python Programming, and today, I will review one of the most popular Deep Learning specializations on Coursera or should I say on the internet, The Deep Learning Specialization by Andrew Ng and his team, offered by deeplearning.ai. While there are many Deep learning courses available online, this is by far the most detailed and comprehensive, yet engaging course on deep learning. 

Top 5 Courses to Learn JIRA for Beginners and Experienced Developers in 2021 - Best of Lot

Hello guys, If you are working in Agile projects then you must have come across JIRA, one of the most popular tools for planning, project management, and bug tracking. Almost all the software companies use JIRA for their software development which makes it an essential tool for software developers, team lead, tech lead, scrum master, and project managers. If you want to learn JIRA and looking for the best online training courses then you have come to the right place. In the past, I have shared free Agile courses and books and  In this article, I am going to share the best courses to learn JIRA online for both beginners and experienced developers.

Top 5 Essential Skills to Crack Coding Interviews in 2021

Hello guys, there is no doubt cracking the Coding interviews of tech companies like Google, Microsoft, and Amazon is very hard, but you can still crack it by carefully planning and preparing the essential skills which matter most like Data structures and Algorithms, System Design, Multithreading and Concurrency, SQL and Database design, and of course, problem-solving skills. Being an author of Java and a programming blog, I often receive queries about how to prepare for coding interviews? How to pass Google or Microsoft Software Developer interviews? Or how can I get a software development job on Amazon or Facebook?

250+ Questions for Java SE 11 Developer Certification [1Z0-819] - My New Udemy Course

Hello guys, I am very excited to announce the release of my new Udemy course, 2021 Java SE 11 Certification Practice Tests for the 1Z0-819 exam. This is one of my dream projects which I have been working on since last year and one of the 3 goals I had set up for this year, along with Grokking the Spring Boot Interview and Grokking the Java Interview. This is also my first Java course on Udemy. The course is a practice test that contains more than 250+ practice questions to prepare for Java SE 11 Developer certification or 1Z0-819 exam. If you are preparing for this certification then you can use these practice tests to check your preparation level, find your strong and weak areas and work upon them. 

5 Projects You Can Build to Learn React.js in 2021 - Best of Lot

Hello guys, if you are self-learning React.js and looking for some project ideas to hone your React skills then you have come to the right place. Earlier, I have shared the best websites, courses, roadmap, and books to learn Reactjs, and today, I am going to share the best React.js projects you can build to improve your React skills. These projects are mainly for beginners who are learning React.js but even intermediate developers can use these project ideas to create some fun projects.  Learning web development and new technologies is not easy and react js is one of them. Just completing an online course about react doesn’t make you a professional web developer until you test your knowledge by creating multiple projects so you take advantage of its features for learning purposes.

Top 5 Online Courses to Learn Vue.js in 2021 - 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 2021. 

Review of Udemy's Machine Learning A-Z - Hands-On Python and R in Data Science - Is it worth it?

Hello there, If you want to learn Machine Learning and thinking whether Udemy's  Machine Learning A-Z - Hands-On Python and R in Data Science  online course is worth it nor then you have come to the right place. In this article, I have reviewed Udemy's Machine Learning A-Z - Hands-On Python and R in Data Science by Kirill Eremenko and Hadelin De Ponteves. Honestly, this is one of the best Machine Learning courses you can get at an affordable price and is suitable for both beginners and intermediate programmers and people who want to pursue Machine Learning. If you are in hurry, I suggest you join the course but if you have some time then stay and read the full review to make an informed decision. 

Top 5 Spring Boot Features Java Developers should Learn

You might have heard about Spring Boot and its magical powers about creating a Spring Web application in just under 140 characters which can be written in a tweet, but what that really mean? What are those features which provide Spring Boot such power and make Spring application development so easy? Well, that's what you will learn in this article, but if you are in hurry let me tell you that you will learn about Spring Boot's auto-configuration, Starter dependencies, Spring Boot CLI, Actuator, and Spring Initializer feature in detail. These are the feature which takes away most of the pain and friction associated with writing Spring-based Java web application.

10 Best Udemy Courses to Learn Python Programming in 2021

Hello guys, If you want to learn Python programming and looking for the best Udemy courses to learn Python online, then you have come to the right place. Earlier, I have shared the best Python courses and free Python courses for both beginners and experienced Python developers but In this article, I am going to share the top 10 Udemy courses to learn Python in 2021. This includes both hands-on and project-based courses where you will learn by doing, I mean you will actually build the projects using Python. This is the best approach to learn any new technology or skill, including Python. By the way, when it comes to learning online, Udemy is my go-to place becuase of affordable pricing and some high-quality courses.

For Gumroad Day, my Java and Spring Books are 'Pay What You Want', $1 minimum [TODAY ONLY]

Hello guys, just wanted to write a short post about the Gumroad sale and the once-in-a-lifetime opportunity to buy my books for just 1$ (minimum).  For #GumroadDay, both my books, Grokking the Java Interview and Grokking the Spring Boot Interview are 'Pay What You Want, $1 minimum. Today only.

- Grokking the Java Interview, $19.9 (normal price)
- Grokking the Spring Bot Interview, $19.9 (normal price)

More than 580+ Java developers have bought so far. Go see what they look like!

Top 5 Course to Crack Google's Associate Cloud Engineer Certification Exam in 2021 - Best of Lot

Hello guys, If you are looking to pursue a career as a Google Cloud Engineer or merely just want to acquire a cloud certificate to add to your colorful resume, then taking the Google Cloud Engineer exam might be just the right thing for you. Google Cloud Platform or GCP is one of the top 3 public cloud providers along with AWS and Microsoft Azure and the demand for certified Google cloud professionals is growing exponentaitonal because of increased adoption of the Google Cloud Platform. If you already have a fair amount of experience, then you may want to go for the Professional Cloud exam. But if you are a newbie, or looking to add more certifications to add your CV then the Associate Cloud Engineer exam is the way to go.

Top 5 Tools for Testing REST APIs and RESTful Web Services - Best of Lot

Hello guys, If you are a Java or web developer working on REST APIs and RESTful web services and looking for some tools to test your APIs and web services then you have come to the right place. Earlier, I have shared the best books and courses for RESTful web services and in this article, I am going to share five awesome but easily accessible and free tools to test your REST APIs. These REST API testing tools will help you to test your APIs as you build, starting from unit testing to integration testing and then fully automating your resting to create a regression pack. You can also use these tools to interact with your REST API during the development phase for quick tests. 

Top 10 Courses to learn PHP for Beginners in 2021 - Best of Lot

Hello guys, if you want to learn PHP, MySQL, Laravel, and looking for the best PHP courses then you have come to the right place. Earlier, I have shared some best WordPress courses, one of the most popular PHP applications, and free PHP and MySQL courses and in this article, I am going to share the best online courses to learn PHP for beginners. Some people have the desire to learn web development but they get confused about which programming language should they pick in a world full of programming languages. But, when it comes to choosing a simple programming language for web development then PHP is a great choice and also one of the most popular server-side programming languages. 

Top 5 Online Courses to Learn Modules and Java 9 Features in 2021 - Best of Lot

The last couple of years was the year of releases for Java developers. With versions of JDK 9 to JDK 15, Spring 5, Spring Boot 2.0, and Spring Security 5.0, there was so much to learn for Java developers and all at once, but like many others, I didn't make a good process, and I am looking to turn it around this year. One of my top priority goals for this year is to learn new Java features as quickly as possible to write more about them. It's also essential for you to learn modern Java features to write better code and improve your day-to-day productivity with Java. The Java 9 release intends to change the way Java developers used to write code. It introduces a modular JDK so that developers can only include the modules that they need.

Top 22 Spring Interview Questions Answers for Java Programmers [UPDATED]

Hey Java Programmers, if you are preparing for a Java developer interview then you should pay special attention to Spring framework-related questions. Spring framework interview questions are on the rise on Java web development and core Java interviews.  This is obvious given Spring Framework is the best most popular framework available for Java application development and now Spring IOC container and Spring MVC framework are used as a de-facto framework for all new Java development. Because of its popularity,  interview questions from the spring framework are top on any list of Java Interview questions and you should also prepare different Spring topics like Spring Boot, Spring Data JPA, Spring Security, Testing and Spring Cloud, etc to do well on Java developer interviews. 

Difference between @Autowired and @Inject annotation in Spring?

What is the difference between @Autowired and @Inject annotation in Spring is one of the frequently asked Spring questions on Java interviews? Since everybody is now moved or moving to annotation-driven and Java configuration in Spring, this question has become even more important for prospective candidates looking for a Java web development job using the Spring framework. The @Autowired annotation is used for auto-wiring in the Spring framework. If you don't know, autowiring is a process on which the Spring framework figure out the dependencies of a Spring bean, instead of you, a developer, explicitly specifying them in the application context file. You can annotate fields and constructor using @Autowired to tell Spring framework to find dependencies for you.

Top 10 Online Courses to learn Ruby on Rails for Beginners in 2021 - Best of Lot

If you want to learn Ruby Programming language or Ruby on Rails, a leading web development framework then you have come to the right place. Earlier, I have shared the best Python 3 courses and books, and today, I am going to share the best Ruby and Rails course for beginners. A danish student calls himself DHH (David Heinemeier Hansson) have created a new framework that makes web development more than easy even if you don’t have that many skills in programming and one year later twitter have adopted that language and added it to their website and you may be now guessed what is that framework. Well, it is known as Ruby on Rails.

Top 5 Online Training courses to learn Cloud Computing in 2021 - Best of Lot

Cloud Computing is becoming an essential skill for any Software developer or IT professional today as more and more companies are moving towards Cloud for their infrastructure and service needs. It pays to learn Cloud Computing today as the most likely application will be solely building and deploy in the cloud in the future. No matter what your role is, if you are working in technology, cloud computing is going to affect you, one way or another. Anyway, if you want to learn cloud computing then you have come to the right place, in this article, I am going to share some of the best courses to learn Cloud computing basics in general and with AWS and GCP in particular.

Difference between BeanFactory and ApplicationContext in Spring framework

The difference between BeanFactory and ApplicationContext in Spring framework is another frequently asked Spring interview question mostly asked Java programmers with 2 to 4 years experience in Java and Spring. Both BeanFactory and ApplicationContext provide a way to get a bean from the Spring IOC container by calling getBean("bean name"), but there is some difference in their working and features provided by them. One difference between the bean factory and application context is that the former only instantiates bean when you call getBean() method while ApplicationContext instantiates Singleton bean when the container is started,  It doesn't wait for the getBean to be called.