Notes 3/12/2009

Boolean Operators

AND   &&
OR    ||
NOT   !

  X   Y  =   X && Y    X || Y    !X
-------------------------------------
  T   T  =      T         T       F
  T   F  =      F         T       F
  F   T  =      F         T       T
  F   F  =      F         F       T


AND: The result will be TRUE only when both operands are TRUE.
     Otherwise the result will be FALSE.

OR:  The result will be when when at least one of the operands is TRUE.
     Otherwise the result will be FALSE.

NOT: The result will be TRUE when the operand is FALSE.
     Otherwise the result will be FALSE.


To determine if a value is within a range we use the AND operator.

Example to check if a value in between 5 to 10 (inclusive)

    // Assume the value is in the variable val1
    if ( (val1 >= 5) && (val1 <= 10) )
       {
         System.out.println("The value is between 5 to 10");
       }