Arithmetic Compound Assignment Operators
Description
Statements like the following
a = a + 4;
can be rewritten as
a += 4;
Both statements perform the same action: they increase the value of a by 4.
Syntax
Any statement of the form
var = var op expression;
can be rewritten as
var op= expression;
Example
Here is a sample program that shows several op= operator assignments:
public class Main {
//from w w w . j a v a 2s. c om
public static void main(String args[]) {
int a = 1;
int b = 2;
int c = 3;
a += 1;
b *= 2;
c += a * b;
c %= 3;
System.out.println("a = " + a);
System.out.println("b = " + b);
System.out.println("c = " + c);
}
}
The output of this program is shown here:
