Java Programming MCQ Questions

Which of the following is not a Java keyword?

• static

• Boolean

• void

• private

What is the size of an int variable in Java?

• 8 bits

• 16 bits

• 32 bits

• 64 bits

Which of these is used to create an object in Java?

• create

• new

• class

• make

What is the default value of a boolean variable in Java?

• true

• false

• 0

• null

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

• Encapsulation

• Inheritance

• Compilation

• Polymorphism

Which method is the entry point of a Java program?

• start()

• init()

• main()

• run()

Which keyword is used to inherit a class in Java?

• implements

• extends

• inherits

• derive

Which package contains the Scanner class?

• java.io

• java.util

• java.net

• java.lang

What will be the output of: System.out.println(10 + 20 + "Java")?

• 30Java

• Java1020

• 1020Java

• Compilation Error

Which of the following is used to handle exceptions in Java?

• try-catch

• import

• throw-catch

• final-finally