Boolean operators are frequently used to control conditional and iteration statements.  The following list includes the most common Boolean operators.

1. < (less than)
       e.g.  (5 < 6) returns true
2. > (greater than)
       e.g.  (5 < 6) returns false
3. <=
4. >=
5. == (equal)
        e.g. (5 == 6) returns false
6. != (not equal)
        e.g. (5 == 6) returns true
7. && (logical and)
          e.g. (true && false) returns false
8. || (logical or)
         e.g.   (true || false) returns true
9.   ! (logical not)
        e.g. (! (5 < 6)) returns false