Unit 1: Augmented Assignment Operators
Table of Contents
Augmented Assignment Operators
A lot of times in programming you’ll need to update a value relative to itself. For instance, when you’re playing a video game and you collect a coin, your score might go up by 5 points relative to what it was before.
In Java, that would look like this (assume a variable score has already been delcared and initialized):
score = score + 5;
Augmented assignment operators allow us to do that with less typing:
score += 5;
There are augmented assignment operators for each of the arithmetic operators. In the table below, assume var is a variable that has been declared and initialized.
| Augmented Assignment Operator | Normal | Augmented Assignment |
|---|---|---|
+= | var = var + 5 | var += 5 |
-= | var = var - 5 | var -= 5 |
*= | var = var * 5 | var *= 5 |
/= | var = var / 5 | var /= 5 |
%= | var = var % 5 | var %= 5 |