Quiz Discussion

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);
        } 
    }

 

Course Name: Java

  • 1]

    10

  • 2]

    11

  • 3]

    12

  • 4]

    56

Solution
No Solution Present Yet

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# Quiz
1
Discuss

What should be expression1 evaluate to in using ternary operator as in this line?

 expression1 ?  expression2  :  expression3
  • 1]

    Integer

  • 2]

    Floating – point numbers

  • 3]

    Boolean

  • 4]

    None of the mentioned

Solution
2
Discuss

Which of these operators can skip evaluating right hand operand?

  • 1]

    !

  • 2]

    |

  • 3]

    &

  • 4]

    &&

Solution
3
Discuss

Which of these is not a bitwise operator?

  • 1]

    &

  • 2]

    &=

  • 3]

    |=

  • 4]

    <=

Solution
4
Discuss

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

  • 1]

    true

  • 2]

    false

Solution
5
Discuss

What will be the output of the following Java program?

    class bitwise_operator 
    {
        public static void main(String args[]) 
        {    
             int a = 3;
             int b = 6;
 	         int c = a | b;
             int d = a & b;             
             System.out.println(c + " "  + d);
        } 
    }

 

  • 1]

    7 2

  • 2]

    7 7

  • 3]

    7 5

  • 4]

    5 2

Solution
6
Discuss

What is the order of precedence (highest to lowest) of following operators?

    1. &    
    2. ^
    3. ?:
  • 1]

    1 -> 2 -> 3

  • 2]

    2 -> 1 -> 3

  • 3]

    3 -> 2 -> 1

  • 4]

    2 -> 3 -> 1

Solution
7
Discuss

What will be the output of the following Java program?

    class increment 
    {
        public static void main(String args[])
        {
            double var1 = 1 + 5; 
            double var2 = var1 / 4;
            int var3 = 1 + 5;
            int var4 = var3 / 4;
            System.out.print(var2 + " " + var4);
 
        } 
    }

 

  • 1]

    1 1

  • 2]

    0 1

  • 3]

    1.5 1

  • 4]

    1.5 1.0

Solution
8
Discuss

Decrement operator, −−, decreases the value of variable by what number?

  • 1]

    1

  • 2]

    2

  • 3]

    3

  • 4]

    4

Solution
9
Discuss

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

  • 1]

    ~

  • 2]

    <<<

  • 3]

    >>>

  • 4]

    ^

Solution
10
Discuss

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

Solution
# Quiz