import java.io.*; // for I/O //类名:Params //属性: //方法: class Params //这个类的对象被压入栈中 { public int n; //用来存放键盘输入的数字 public int returnAddress; //返回的地址 public Params(int nn, int ra) { n=nn; returnAddress=ra; } } // end class Params //类名:StackX //属性: //方法: cl…
摘自 http://blog.csdn.net/xiayaxin/article/details/5355851 import java.util.Random; public String getCharAndNumr(int length) { String val = ""; Random random = new Random(); for(int i = 0; i < length; i++) { String charOrNum = random.nextInt(2)…