最后的那个是怎么得出来的？

Question

three = one+ two ==>30three += one ==>40three -= one ==>30three *= one ==>300three /= one ==>30three %= one ==>0

Answer 1

％是取余 能整除就是0咯

Answer 2

还是不明白，我把值代入 30%10=3 呀！

Answer 3

前面是字符串，后面是变量值

参考代码

public class HelloWorld{
    public static void main(String[] args) {
	int one = 10 ;
        int two = 20 ;
        int three = 0 ;
        three=one+two;
        System.out.println("three = one + two ==> "+three);
        three+=one;
        System.out.println("three += one ==> "+three);
        three-=one;
        System.out.println("three -= one ==> "+three);
        three*=one;
        System.out.println("three *= one ==> "+three);
        three/=one;
        System.out.println("three /= one ==> "+three);
        three%=one;
        System.out.println("three %= one ==> "+three);
        }
}