Here is a complete guide on how to help you crack the most frequently asked Core Java Interview questions . Here are some of the most asked Java interview questions . What is Java? Why is Java a platform independent language? What are the differences between C++ and Java? Why is Java not a pure object oriented language? In this article, we will provide 200+ Core Java Interview Questions tailored for both freshers and experienced professionals with 3, 5, and 8 years of experience. Whether you’re a beginner in Java or an expert programmer, this article provides some common Java interview questions and answers to help you prepare. 1. How do you reverse a string in Java? There is no reverse() utility method in the String class. Prepare for your Java interview with this comprehensive list of questions and answers on core Java topics, OOPs, JDBC, Spring, Hibernate, JSP, exceptions and threads. Learn the features, differences, advantages and disadvantages of Java programming language.