What topics are covered in Core Java Interview MCQs?

High-quality Core Java MCQs covering OOPs, Collections, JVM, Multithreading, Exception Handling, Strings, Serialization, and more for placement interviews.

How many questions are in this interview practice set?

This set contains 50 practice questions.

Are these real interview questions?

Yes, these questions are curated based on common patterns in technical and behavioral interviews.

How can I use this for interview preparation?

Attempt the questions, review detailed explanations, and track your accuracy over time to identify weak areas.

Core Java Interview MCQs Practice Questions

Instructions

For each question, select the best answer from the options provided. You can view detailed explanations immediately after answering. Navigate through pages using the controls below.

Question 1

Which of the following is not an OOPS concept in Java?

Question 2

What is the size of an 'int' primitive in Java?

Question 3

Which keyword prevents a class from being inherited?

Question 4

Default value of an Object reference variable in Java?

Question 5

Which collection maintains insertion order?

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