賦值運算符是指為變量或常量指定數值的符號。如可以使用 “=” 將右邊的表達式結果賦給左邊的操作數。

Java 支持的常用賦值運算符，如下表所示：

 1 public class HelloWorld{
 2     public static void main(String[] args) {
 3         int one = 10 ;
 4         int two = 20 ;
 5         int three = 0 ;
 6         three=one+two;
 7         System.out.println("three = one + two ==>"+three);
 
 8         three+=one;
 9         System.out.println("three += one ==>"+three);
10         three-=one;
11         System.out.println("three -= one ==>"+three);
12         three*=one;
13         System.out.println("three *= one ==>"+three);
14         three/=one;
15         System.out.println("three /= one ==>"+three);
 
16         three%=one;
17         System.out.println("three %= one ==>"+three);
18 
19     
20     }
21 }

摘自：慕課網

Java中的賦值運算符