新建AssignTest.java

public class AssignTest{
  public static void main(String[] args){
     int a = 10;
     int b = 20;
     int c = 0;
  c = a + b;
    System.out.println("c = a + b = " + c); // c= 30
  c += a;
    System.out.println("c += a = " + c); // c=40
  c -= a;
    System.out.println("c -= a = " + c); // c=30
  c *= a;
    System.out.println("c *= a = " + c); // c=300
  a = 10;
  c = 15;  
  c /= a;
    System.out.println("c /= a = " + c); // c=1.5 = 1
  a = 10;
  c = 15;  
  c %= a;
    System.out.println("c %= a = " + c); // 取差 c=5=15-10
  c &= a;
    System.out.println("c &= a = " + c); 
  c ^= a;
    System.out.println("c ^= a = " + c); // 
  c |= a;
    System.out.println("c |= a = " + c);
  c <<= 2;
    System.out.println("c |= a = " + c);
  c >>= 2;
    System.out.println("c <<= 2 = " + c);
  c >>= 2;
    System.out.println("c >>= 2 = " + c);
    }
}

保存，打开cmd -> cd /文件目录下 -> javac AssignTest.java -> java AssignTest -> 输出 ！