1. Java MCQs on Java Environment & OOPs Concepts

This part contains Java multiple-choice questions and answers on OOPs concepts, jdk, jre, jit and jvm.

2. Java Multiple Choice Questions on Classes and Methods

This part contains Java multiple-choice questions and answers on fundamentals of classes, methods basics, heap and garbage collection, object creation, constructors, access control, string class, static keyword, and command line arguments.

3. Java Multiple Choice Questions on Inheritance

This part contains Java multiple-choice questions and answers on method overriding, inheritance, abstract class and super.

4. Java Multiple Choice Questions on String Handling in Java

This part contains Java multiple-choice questions and answers on character extraction, string handling functions like stringbuffer class, stringjoiner class and other string comparison functions

5. Java Multiple Choice Questions on Exploring java.lang & java.io

This part contains Java multiple-choice questions and answers on various concepts of java.lang like data types, types of classes, character and byte streams, builtin exceptions, rounding functions, double and float wrappers, character and boolean wrappers.