Quiz Discussion

Which of the following operators can operate on a boolean variable?

   1. &&
   2. ==
   3. ?:
   4. +=
Course Name: Java

  • 1]

    3 & 2

  • 2]

     1 & 4

  • 3]

     1, 2 & 4

  • 4]

    1, 2 & 3

Solution
No Solution Present Yet

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# Quiz
1
Discuss

What will be the output of the following Java code?

    class Relational_operator 
    {
        public static void main(String args[])
        {
            int var1 = 5; 
            int var2 = 6;
            System.out.print(var1 > var2);
        } 
    }

 

  • 1]

    1

  • 2]

    0

  • 3]

    true

  • 4]

    false

Solution
2
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
3
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
4
Discuss

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

  • 1]

    ~

  • 2]

    <<<

  • 3]

    >>>

  • 4]

    ^

Solution
5
Discuss

Which of these statements is correct?

  • 1]

    true and false are numeric values 1 and 0

  • 2]

    true and false are numeric values 0 and 1

  • 3]

    true is any non zero value and false is 0

  • 4]

    true and false are non numeric values

Solution
6
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
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

Which right shift operator preserves the sign of the value?

  • 1]

    <<

  • 2]

    >>

  • 3]

    <<=

  • 4]

    >>=

Solution
9
Discuss

Which of the following can be operands of arithmetic operators?

  • 1]

    Numeric

  • 2]

    Boolean

  • 3]

    Characters

  • 4]

    Both Numeric & Characters

Solution
10
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
# Quiz