Java简单的密保卡实现，java保卡,import java.

Java简单的密保卡实现，java保卡,import java.

import java.text.MessageFormat;import java.util.HashMap;import java.util.Map;import java.util.Random;import java.util.Scanner;public class Mbk {    private Map<Integer, Map<Integer, String>> datas = new HashMap<Integer, Map<Integer, String>>();    private String[] bj = new String[] { "Q", "W", "E", "A", "B", "C", "D",            "H", "F", "G" };    private int l = bj.length;    private int h = 5;    private int sjl;    private int sjh;    private static String sjhmc;    private static String sjlmc;    private static String result;    //初始化一张密保卡    public void init() {        //打印标题行        for (int j = 0; j < l; j++) {            System.out.print("   "+bj[j]);        }        System.out.println();        //打印密保卡内容信息        for (int i = 0; i < h; i++) {            System.out.print(bj[i]+"  ");            Map<Integer,String> tmp=new HashMap<Integer, String>();            for (int j = 0; j < l; j++) {                int ys=new Random().nextInt(99);                if (ys>=10) {                    System.out.print(ys+"  ");                }else{                    System.out.print(ys+"   ");                }                tmp.put(j,ys+"");                datas.put(i,tmp);            }            System.out.println();        }    }    //随机选择行列    public void sjxz(){        sjl=new Random().nextInt(l);        sjh=new Random().nextInt(h);        sjl=sjl==0?0:sjl-1;        sjh=sjh==0?0:sjh-1;        sjhmc=bj[sjh];        sjlmc=bj[sjl];        result=datas.get(sjh).get(sjl);    }    public static void main(String[] args) {        Mbk mdk=new Mbk();        mdk.init();        int i;        for (i=0; i < 2; i++) {            mdk.sjxz();            Scanner scan = new Scanner(System.in);            System.out.println(MessageFormat.format("请输入{0}行{1}列的数字",sjhmc,sjlmc));            String srz = scan.next();            if (!result.equals(srz)) {                break;            }        }        if(i==2)            System.out.println("验证通过...");        else            System.out.println("验证失败...");    }}//该片段来自于http://byrx.net