This operator evaluates to non-zero if and only if both operands are non-zero, otherwise it evaluates to zero.
Syntax:
exp1 && exp2
Usage:
7 && 8 // evaluates to 1
0 && 2 // evaluates to 0
5 == 5 && 2==2 // evaluates to 1
If exp1 evaluates to zero, exp2 is not evaluated.