Quiz Discussion

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);
        } 
    }

 

Course Name: Java

  • 1]

    7 2

  • 2]

    7 7

  • 3]

    7 5

  • 4]

    5 2

Solution
No Solution Present Yet

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# Quiz
1
Discuss

Modulus operator, %, can be applied to which of these?

  • 1]

    Integers

  • 2]

    Floating – point numbers

  • 3]

    Both Integers and floating – point numbers

  • 4]

    None of the mentioned

Solution
2
Discuss

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

  • 1]

    true

  • 2]

    false

Solution
3
Discuss

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

  • 1]

    ~

  • 2]

    <<<

  • 3]

    >>>

  • 4]

    ^

Solution
4
Discuss

Which of these statements are incorrect?

  • 1]

    The left shift operator, <<, shifts all of the bits in a value to the left specified number of times

  • 2]

    The right shift operator, >>, shifts all of the bits in a value to the right specified number of time

  • 3]

    The left shift operator can be used as an alternative to multiplying by 2

  • 4]

    The right shift operator automatically fills the higher order bits with 0

Solution
5
Discuss

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

Solution
6
Discuss

Which of these statements are incorrect?

  • 1]

    Equal to operator has least precedence

  • 2]

    Brackets () have highest precedence

  • 3]

    Division operator, /, has higher precedence than multiplication operato

  • 4]

    Addition operator, +, and subtraction operator have equal precedence

Solution
7
Discuss

Which of these statements are incorrect?

  • 1]

    Assignment operators are more efficiently implemented by Java run-time system than their equivalent long forms

  • 2]

    Assignment operators run faster than their equivalent long forms

  • 3]

    Assignment operators can be used only with numeric and character data type

  • 4]

    None of the mentioned

Solution
8
Discuss

What will be the output of the following Java program?

    class rightshift_operator 
    {
        public static void main(String args[]) 
        {    
             int x; 
             x = 10;
             x = x >> 1;
             System.out.println(x);
        } 
    }

 

  • 1]

    10

  • 2]

    5

  • 3]

    2

  • 4]

    20

Solution
9
Discuss

 On applying Left shift operator, <<, on integer bits are lost one they are shifted past which position bit?

  • 1]

    1

  • 2]

    32

  • 3]

    33

  • 4]

    31

Solution
10
Discuss

What will be the output of the following Java code?

    class Output 
    {
        public static void main(String args[]) 
        {    
             boolean a = true;
             boolean b = false;
             boolean c = a ^ b;
             System.out.println(!c);
        } 
    }

 

  • 1]

    0

  • 2]

    1

  • 3]

    true

  • 4]

    false

Solution
# Quiz