为什么有这样的输出？ 奇怪了？

Java code

import java.io.*;import java.math.*;public class Puncher {        static int i,j;        static void hole(int n)    {        int i;        i = n+j;        j= i+j;        System.out.println("\n inside: i = "+i+" j = "+j);    }        public static void main(String argv[])    {        System.out.println("\n before: i = "+i+" j = " +j);        hole(5);        System.out.println("\n after: i = "+i+" j = " +j);    }}

我觉得输出应该是：
before: i = 0 j = 0

inside: i = 5 j = 5

after: i = 5 j = 5

然而跑了一下这个程序输出：

before: i = 0 j = 0

inside: i = 5 j = 5

after: i = 0 j = 5



[解决办法]
你在hole()内部定义了一个局部变量i,改变的是局部变量，不是外面的那个i