1. How to convert Date object to String?

2. Which of these statements is incorrect about Thread?

3. What will be the output of the following Java program?

        class recursion 

        {

            int fact(int n) 

            {

                int result;

                if (n == 1)

                    return 1;

                result = fact(n - 1) * n;

                return result;

            }

        } 

        class Output 

        {

            public static void main(String args[]) 

            {

                recursion obj = new recursion() ;

                System.out.print(obj.fact(5));

            }

        }

4.  Which variables are created when an object is created with the use of the keyword 'new' and destroyed when the object is destroyed?

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

        class A 

        {

            public int i;

            protected int j;

        }    

        class B extends A 

        {

            int j;

            void display() 

            {

                super.j = 3;

                System.out.println(i + " " + j);

            }

        }    

        class Output 

        {

            public static void main(String args[])

            {

                B obj = new B();

                obj.i=1;

                obj.j=2;   

                obj.display();     

            }

       }

6. Which of these keywords is used to prevent content of a variable from being modified?

7. In Iterator, hasMoreElements() method of Enumeration has been changed to:

8. How to format date from one form to another?

9. What will be the output of the following Java program?

        class Output 

        {

             public static void main(String args[]) 

            {

                double x = 2.0;  

                double y = 3.0;

                double z = Math.pow( x, y );

                System.out.print(z);

            }

        }

10. Which two classes use the Shape class correctly?

A. public class Circle implements Shape 
   {
    private int radius;
   }
B. public abstract class Circle extends Shape 
   {
    private int radius;
   }
C. public class Circle extends Shape 
   {
   private int radius;
   public void draw();
   }
D. public abstract class Circle implements Shape 
   {
    private int radius;
    public void draw();
   }
E. public class Circle extends Shape 
   {
    private int radius;
    public void draw()
    {
     /* code here */
    }
   }
F. public abstract class Circle implements Shape 
   {
     private int radius;
     public void draw() 
     { 
      /* code here */ 
     }
   }

11. What will be the output of the following Java program?

        class recursion 

        {

            int func (int n) 

            {

                int result;

                result = func (n - 1);

                return result;

            }

        } 

        class Output 

        {

            public static void main(String args[]) 

            {

                recursion obj = new recursion() ;

                System.out.print(obj.func(12));

            }

        }

12. What is an assignment statement?

13. What will be the output of the following Java code snippet?

    class abc

    {

        public static void main(String args[])

        {

            if(args.length>0)

            System.out.println(args.length);

        }

    }

14. File class is included in which package?

15. Find the output of the following code.

import java.util.Scanner;

class ThisKeyword {
  private int a = 4;
  private int b = 1;

  void getSum(int a, int b) {
    this.a = a;
    this.b = b;
    System.out.println(this.a + this.b);
  }
}

public class Main {
  public static void main(String args[]) {
    ThisKeyword T = new ThisKeyword();
    T.getSum(3, 5);
  }
}