!false=true t!true=false

A B A|B A&B A^B !A
False False False False False True
True False True False True False
False True True False True True
True True True True False False

+ // Demonstrate the boolean logical operators.
+ class BoolLogic {
+ public static void main(String args[] ){
+ boolean a = true;
+ boolean b = false;
+ boolean c = a | b;
+ boolean d = a & b;
+ boolean e = a ^ b;
+ boolean f =( !a & b )|( a & !b);
+ boolean g = !a;
+ System.out.println(" a = " + a);
+ System.out.println(" b = " + b);
+ System.out.println(" a|b = " + c);
+ System.out.println(" a&b = " + d);
+ System.out.println(" a^b = " + e);
+ System.out.println("!a&b|a&!b = " + f);
+ System.out.println(" !a = " + g);
+ }
+ }

a = true
b = false
a|b = true
a&b = false
a^b = true
!a&b|a&!b = true
!a = false

+ if(denom != 0 && num / denom > 10)