OOP Quiz #2

Composition is a

• 
  uses-a relationship

• has-a relationship

• is-a relationship

• none of the above

Select the access level/s of a private modifier.

• Class

• Package

• Subclass

• World

What is an instance of a class?

• Class

• • Object

• • Reference

• • Primitive

What is the default value of a primitive int data type?

• -1

• null

• 0

• garbage data

Consider the given code. What would be the display on the screen?

• Class A

• Class B

• Class C

• Compile error

When Overloading does not occur?

• 
  More than one method with same name but different method signature and different number or type of parameters

• More than one method with same name, same signature but different number of signature

• More than one method with same name, same signature, same number of parameters but different type

• More than one method with same name, same number of parameters and type but different signature

Which of these keywords can be used to prevent Method overriding?

• static

• constant

• protected

• final

JDK stands for________

Function of the Scanner class to accept a float literal from the user is

• nextInt( )

• hasNext( )

• next( )

• nextFloat( )

What will be the Output of the below code:

public class Demo{

public static void main(String[] arr){

}

public static void main(String arr){

}

}

• 
  a) Nothing

• b) Error

• C) Finite

• d) Hii