Quiz Discussion

What will be the output of the following Java program?

    class Output 
    {
        public static void main(String args[]) 
        {    
             int a = 1;
             int b = 2;
             int c;
             int d;
             c = ++b;
             d = a++;
             c++;
             b++;
             ++a;
             System.out.println(a + " " + b + " " + c);
        } 
    }

• 1]

  3 2 4

• 2]

  3 2 3

• 3]

  2 3 4

• 4]

  3 4 4

What will be the output of the following Java program?

    class Modulus 
    {
        public static void main(String args[]) 
        {    
             double a = 25.64;
             int  b = 25;
             a = a % 10;
             b = b % 10;
             System.out.println(a + " "  + b);
        } 
    }

• 1]

  5.640000000000001 5

• 2]

  5.640000000000001 5.0

• 3]

  5 5

• 4]

  5 5.640000000000001

What will be the output of the following Java code?

    class operators 
    {
        public static void main(String args[])
        {
            int var1 = 5; 
            int var2 = 6;
            int var3;
            var3 = ++ var2 * var1 / var2 + var2;
            System.out.print(var3);
        } 
    }

• 1]

  10

• 2]

  11

• 3]

  12

• 4]

  56

Which right shift operator preserves the sign of the value?

• 1]

  <<

• 2]

  >>

• 3]

  <<=

• 4]

  >>=

What will be the output of the following Java code?

    class Output 
    {
        public static void main(String args[]) 
        {    
             int x , y = 1;
             x = 10;
             if (x != 10 && x / 0 == 0)
                 System.out.println(y);
             else
                 System.out.println(++y);
        } 
    }

• 1]

  1

• 2]

  2

• 3]

  Runtime error owing to division by zero in if condition

• 4]

  Unpredictable behavior of program

What will be the output of the following Java program?

    class leftshift_operator 
    {
        public static void main(String args[]) 
        {        
             byte x = 64;
             int i;
             byte y; 
             i = x << 2;
             y = (byte) (x << 2)
             System.out.print(i + " " + y);
        } 
    }

• 1]

  0 64

• 2]

  64 0

• 3]

  0 256

• 4]

  256 0

What will be the output of the following Java code?

    class ternary_operator 
    {
        public static void main(String args[]) 
        {        
             int x = 3;
             int y = ~ x;
             int z;
             z = x > y ? x : y;
             System.out.print(z);
        } 
    }

• 1]

  0

• 2]

  1

• 3]

  3

• 4]

  -4

Which operator is used to invert all the digits in a binary representation of a number?

• 1]

  ~

• 2]

  <<<

• 3]

  >>>

• 4]

  ^

Which of these is not a bitwise operator?

• 1]

  &

• 2]

  &=

• 3]

  |=

• 4]

  <=

Can 8 byte long data type be automatically type cast to 4 byte float data type?

• 1]

  true

• 2]

  false