Quiz Discussion

Which of these statements are incorrect?

Course Name: Java

  • 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
No Solution Present Yet

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# Quiz
1
Discuss

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

  • 1]

    1

  • 2]

    2

  • 3]

    3

  • 4]

    4

Solution
2
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
3
Discuss

What will be the output of the following Java program?

class Output 
{
        public static void main(String args[]) 
        {    
             int a,b,c,d;
             a=b=c=d=20
            a+=b-=c*=d/=20
           System.out.println(a+" "+b+" "+c+" "+d);
 
        } 
}

 

  • 1]

    compile time error

  • 2]

    runtime error

  • 3]

    a=20 b=0 c=20 d=1

  • 4]

    none of the mentioned

Solution
4
Discuss

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 = 3;
             a |= 4;
             b >>= 1;
             c <<= 1;
             a ^= c;
             System.out.println(a + " " + b + " " + c);
        } 
    }

 

  • 1]

    3 1 6

  • 2]

    2 2 3

  • 3]

    2 3 4

  • 4]

    3 3 6

Solution
5
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
6
Discuss

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

Solution
7
Discuss

 What is the value stored in x in the following lines of Java code?

   int x, y, z;
    x = 0;
    y = 1;
    x = y = z = 8;
  • 1]

    0

  • 2]

    1

  • 3]

    9

  • 4]

    8

Solution
8
Discuss

What will be the output of the following Java program?

    class bitwise_operator 
    {
        public static void main(String args[])
        {
            int var1 = 42;
            int var2 = ~var1;
            System.out.print(var1 + " " + var2);     	
        } 
    }

 

  • 1]

    42 42

  • 2]

    43 43

  • 3]

    42 -43

  • 4]

    42 43

Solution
9
Discuss

What will be the output of the following Java code?

    class operators 
    {
        public static void main(String args[]) 
        {    
             int x = 8;
             System.out.println(++x * 3 + " " + x);
        } 
    }

 

  • 1]

    24 8

  • 2]

    24 9

  • 3]

    27 8

  • 4]

    27 9

Solution
10
Discuss

With x = 0, which of the following are legal lines of Java code for changing the value of x to 1?

   1. x++;
   2. x = x + 1;
   3. x += 1;
   4. x =+ 1;
  • 1]

    1, 2 & 3

  • 2]

    1 & 4

  • 3]

    1, 2, 3 & 4

  • 4]

    3 & 2

Solution
# Quiz