How to Fix Unsupported major.minor version 60.0, 59.0, 58.0, 57.0, 56.0, 55.0, 54, 0, 53.0, 52.00, 51.0 Error in Eclipse & Java

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The UnsupportedClassVersionError is a big nightmare for Java developers, probably the next biggest after NoClassDefFoundError and ClassNo...

How to fix java.lang.OutOfMemoryError: unable to create new native thread [Solution]

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There are several types of OutOfMemoryError in Java e.g. OutOfMemoryError related to Java heap space and permgen space, and a new one comin...
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10 Essential Spring MVC and REST Annotations with Examples for Java Programmers

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Hello guys, welcome to my third article on exploring essential annotations from the Spring framework, the most popular framework for Java d...
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How to solve java.lang.NoClassDefFoundError: org/springframework/beans/factory/SmartInitializingSingleton in Spring Boot [Solved]

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Problem: I was trying to run a HelloWorld program using Spring Boot when I got this error: Exception in thread "main" java.la...

Difference between @Component, @Controller, @Service, and @Repository in Spring

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Hello guys if you are wondering what is the difference between @Component , @Controller ,  @Service , and @Reposistory annotation in Sprin...
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29 Spring Framework Interview Questions Answers for 5 years Experienced

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Spring is one of the most popular framework and most widely used to develop Java Web application using MVC framework. Due to its immense po...

Top 30 OOP (Object Oriented Programming) Interview Questions Answers in Java

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Java is an object-oriented programming language and you will see a lot of object-oriented programming concept questions in Java interviews...
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12 Best React.js courses for Beginners and Experienced in 2025

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If you are a Web developer or someone passionate about web development and looking for some awesome courses to learn React, React.js, or R...

5 Best Programming Languages for Web Development in 2025

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Hello guys, if you want to become a web developer in 2025 but not sure which programming language is best for web development then you hav...

Top 5 Object Oriented Analysis and Design Interview Questions for Programmers, Software Engineers

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Testing the design skill of a candidate is quite common in programming job interviews. Questions like, how do you design a vending machine ...
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70+ Coding Interview Questions for Software Engineers and Developers in 2025

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There are a lot of computer science graduates and programmers applying for programming, coding, and software development roles at startups l...