Java Interview Questions You Need To Know

If you are preparing for a Java developer job interview, it's essential to be well-versed in common Java interview questions. This guide will help you understand and answer some of the most frequently asked Java interview questions to boost your confidence and increase your chances of landing your dream job.

1. What is Java?

Java is a high-level, class-based, object-oriented programming language that is designed to have as few implementation dependencies as possible. It is widely used for building applications in various domains, including web development, mobile applications, enterprise software, and more.

2. What are the key features of Java?

Java is known for its platform independence, object-oriented nature, robustness, security, and multi-threading capabilities. These features make Java a popular choice for developing diverse software applications.

3. What is the difference between JDK, JRE, and JVM?

JDK (Java Development Kit) is a software development kit used to develop Java applications. JRE (Java Runtime Environment) is required to run Java applications. JVM (Java Virtual Machine) is an abstract machine that provides a runtime environment for Java bytecode execution.

4. Explain the concept of OOPs in Java.

Object-Oriented Programming (OOPs)