Java Programming Mock Test 2

10%

Question 1 of 10

1. Which of these methods must be made static?

run()

delete()

finalize()

main()

Question 1 of 10

Question 2 of 10

2. What is not the use of "this" keyword in Java?

Passing itself to method of the same class

Passing itself to another method

Calling another constructor in constructor chaining

Referring to the instance variable when local variable has the same name

Question 2 of 10

Question 3 of 10

3. String in Java is a?

variable

class

object

character array

Question 3 of 10

Question 4 of 10

4. Which of these is used to access a member of class before object of that class is created?

public

protected

private

static

Question 4 of 10

Question 5 of 10

5. What will be the output of the following Java code?

    class overload 
    {
        int x;
 	int y;
        void add(int a) 
        {
            x =  a + 1;
        }
        void add(int a, int b)
        {
            x =  a + 2;
        }        
    }    
    class Overload_methods 
    {
        public static void main(String args[])
        {
            overload obj = new overload();   
            int a = 0;
            obj.add(6);
            System.out.println(obj.x);     
        }
   }

Question 5 of 10

Question 6 of 10

6. Which of the following statements are incorrect?

String is a class

Every string is an object of class String

Strings in java are mutable

Java defines a peer class of String, called StringBuffer, which allows string to be altered

Question 6 of 10

Question 7 of 10

7. Which method can be defined only once in a program?

main method

static method

finalize method

private method

Question 7 of 10

Question 8 of 10

8. All the variables of class should be ideally declared as?

public

private

protected

default

Question 8 of 10

Question 9 of 10

9. Abstract class cannot have a constructor.

False

True

Question 9 of 10

Question 10 of 10

10. Which of these access specifiers must be used for main() method?

none of the mentioned

public

protected

private

Question 10 of 10