' -- ' operator is used to decrement the operator by

In which class is the standard output variable 'out' defined?

Which of these data type value is  returned by the equals method

Which of the following package stores all the simple data types in java?

Which of these methods are used to register a mouse motion listener?

class test{

public static void main (String[] args) {

     int x=3;

     int y=~x;

     int z;

     z=x>~y?~y:y;

     System.out.println(z);

}

}

Which statement is wrong about interfaces in Java?

what should be the output of this code block?

public class abekus {

 public static void main(String[] args) {

  int a = 5;

  a += 5;

  switch (a) {

  case 5:

   System.out.println("5");

   break;

  case 10:

   System.out.println("10");

   break;

  default:

   System.out.println("0");

  }

 }

}

What will be the output of the following code?

   class Area

    {

        int breadth;

        int length;

        int area;

        Area() 

        {

            breadth = 5;

            length = 6;

        }

        void area() 

        {

             area = breadth*length;

        } 

    }    

    class A

    {

        public static void main(String args[])

        {

            int breadth = 10 , length = 10 ;

            Area a = new Area();

            a.area();

            System.out.println(a.area);

        }

   }