摘要：
package com.practice4;import java.io.*;public class TestCopy {public static void main(String[] args)throws IOException {FileInputStream fis=new FileIn... 阅读全文
摘要：
package creat;import java.util.*;import java.io.*;public class GuessNumber { private int ranNum; public GuessNumber(){ Random r = new Random(); ranNum... 阅读全文