logical operators in java [duplicate]

Answer 1

| and & are available for booleans and integer types and don't short-circuit.

&& and || are only available for booleans and they do short-circuit.

Answer 2

The main difference is that in an expression a && b, b will not be evaluated if a is false, while in a & b both a and b will be evaluated no matter what. One can say that && "short-circuits" the evaluation.

Similarly for a || b: b will not be evaluated if a is true, while in a | b both a and b will be evaluated no matter what.

Answer 3

Single character | is bitwise OR operation, double || is logical OR

Single character & is bitwise AND operation, double && is logical AND