The unary bitwise complement operator "~" inverts a bit pattern. it can be applied to any of the integral types, making every "0" a "1" and every "1" a "0". For example, a byte contains 8 bits; ...

Unary operators need only one operand. They are used to increment, decrement or negate a value. – :Unary minus, used for negating the values. eg : int a=20; int b=-a; ++ :Increment operator, used for ...