-- (decrement) Math Operators Web & Application int a = 5; // Sets "a" to 5 int b = a--; // Sets "b" to 5, then decrements "a" to 4 int c = a; // Sets "c" to 4 Substracts the value of an integer variable by 1. Equivalent to the operation i = i - 1. If the value of the variable i is five, then the expression i-- decreases the value of i to 4. var-- int - (minus) -= (subtract assign) ++ (increment) 1.0 Operator PDE