What is the output of this program?public class Bitwise

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What is the output of this program?


public class Bitwise_Operator 
    {
        public static void main(String args[])
        {
            int num1 = 30;
            int num2 = ~num1;
            System.out.print(num1 + " " + num2);     	
        } 
    }

1. 30 -31
2. 40 -40
3. 30 -30
4. 31 -30
5. -40 41

Correct Option: A

Unary not operator, ~, inverts all of the bits of its operand. 30 in binary is 00011110 in using ~ operator on num1 and assigning it to num2 we get inverted value of 30 i:e 11100001 which is -31 in decimal.
output: 30 -31