Java mcq(multiple choice) question with answers

1. Which of the following is not a Java keyword?

static

abstract

super

myclass

2. Which of the following is not a primitive data type in Java?

int

float

boolean

String

3. Which of the following is a valid keyword in Java?

float

unsigned

long

import

4. Which of the following is not a valid loop control statement in Java?

repeat

do-while

while

for

5. What is the default value of an instance variable in Java?

0

null

undefined

not assigned

6. Which of the following is used to catch an exception in a try-catch block?

throw

catch

finally

raise

7. Which of the following is not a valid access modifier in Java?

public

internal

protected

private

8. Which of the following is a valid way to create a string in Java?

"Hello, World!";

'Hello, World!';

new String("Hello, World!");

All of the above

9. What is the "main" method in a Java program used for?

To declare variables

To run the program

To import libraries

To define classes

10. What is the difference between a static and non-static method in Java?

A static method can be called without creating an instance of the class, a non-static method requires an instance.

A non-static method can be overridden, a static method cannot.

A static method can access static variables, a non-static method cannot.

All of the above

11. Which of the following is not a valid variable name in Java?

myVariable

_private

2ndVariable

String

12. What is the purpose of a constructor in Java?

To initialize the state of an object

To define a class

To import libraries

To declare variables

13. Which of the following is not a primitive data type in Java?

int

boolean

float

String

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

true

false

0

null

15. What is the range of values that can be stored in a byte data type in Java?

-128 to 127

-32768 to 32767

-2147483648 to 2147483647

None of the above

16. What is the range of values that can be stored in a short data type in Java?

-128 to 127

-32768 to 32767

-2147483648 to 2147483647

None of the above

17. What is the range of values that can be stored in a long data type in Java?

-128 to 127

-32768 to 32767

-2147483648 to 2147483647

-9223372036854775808 to 9223372036854775807

18. What type of loop allows for a set number of iterations?

for loop

while loop

do-while loop

none of the above

19. What type of loop continues to execute as long as a certain condition is met?

for loop

while loop

do-while loop

none of the above

20. What type of loop always executes at least once before checking the condition?

for loop

while loop

do-while loop

none of the above

Java mcq(multiple choice) question with answers

Java MCQ (Multiple Choice Question) with answers

Learn, grow and help others with BBBootstrap

Quick Links

Tools

Socials