TEST-JAVA

1. What is the default value of an instance variable of type int in Java?

• 0.0

• null

• 0

• undefined

2. Which keyword is used to define a class in Java?

• class

• Class

• define

• struct

3. What will be the output of the following code snippet?

• 30Java

• Java30

• 1020Java

• Java1020

4. Which data type is used to store a single character in Java?

• char

• string

• Character

• byte

5. What is the size of an int in Java?

• 2 byte

• 4 byte

• 8 byte

• It depends on the system