Increment and Decrement Operations

• Adding or subtracting 1 to a variable is probably one of the most computations that we'll do.  So there is a shortcut.
• increment, ++, adds one to a variable.
• decrement, --, subtracts one from the variable.
• The outcome depends on where you put the variable.
• postfix, or variable++, means that one will be added to the variable after the statement is evaluated.
• prefix, or ++variable, means that one will be added before the evaluation takes place.
• Let's take a look at each of these independently.  What is the value of total and item at the end of each line?
int total = 50;
int item = 5;
total = ++item;
total = item++;
total = --item;
total = item--;


 Comparison Operators

Created by:  Brandan Jones January 4, 2002