Java Quiz - Level 5

1. Keyword to inherit a class?

implements

extends

inherit

super

2. Keyword to implement an interface?

extends

interface

implements

import

3. Default value of int in Java?

null

0

1

undefined

4. Which collection does not allow duplicates?

List

Set

Map

Queue

5. Root of all classes in Java?

Class

Super

Object

Base

6. Method that runs before garbage collection?

destroy()

close()

finalize()

end()

7. Which collection maintains insertion order?

HashMap

TreeMap

LinkedHashMap

HashSet

8. Which keyword is used for package import?

include

import

package

use

9. Which access modifier makes a member visible only in the same package?

private

protected

default (no modifier)

public