15. Operators ( Boolean Logical Operators ).md

15. Operators ( Boolean Logical Operators )

Operator	Operation
&	Logical AND
^	Logical XOR
&&	Short-circuit AND
!	Logical Unary NOT
&=	AND assignment
	=
^=	XOR assignment
==	Equal to
! =	Not Equal to
?:	Ternary if-then-else

Boolean logical operators shown above operate only on boolean operands.

Short-circuit logical operators will not evaluate the right hand operand if the outcome of the expression can be determined from the left operand alone.

A && B; results in false when A is false no matter what B is and A || B results in true when A is true no matter what B is.

💡 It is also very helpful when right hand operand depends on the value of left one.

String x = null;
if(x!=null && x.length()>1){}; // doesnot compute right operand
if(x!=null & x.length()>1){}; // computes both operand and throws error