数独 JAVA实现

数独游戏的规则从很久之前就知道，但是一直都没怎么玩过，然后到了大学，大一下学期自己学dfs的时候，刚刚好碰到了一个数独的题目，做出来后，感觉还是挺有成就感的

然后大二学了JAVA，看了下那个一些有关于界面的一些函数的使用这些，就写出来一个比较粗糙的数独游戏，这个游戏我打算一直维护更新，直到我大学毕业，看看最后可以变成什么样子

 public class Main {
     public static void main(String[] args) {
         gra f = new gra("数独",400,400,400,400);
     }
 }

 package sodu;
 import java.io.*;
 import java.util.*;
 import java.math.*;
 import java.security.PrivateKey;
 import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;

 import javax.security.auth.login.CredentialExpiredException;
 import javax.security.cert.CertificateNotYetValidException;
 import javax.swing.*;
 import javax.swing.text.AbstractDocument.LeafElement;

 import org.omg.PortableServer.ServantLocator;
 public class gra extends JFrame {
     Scanner cin = new Scanner(System.in);
     Random ran = new Random();
     JMenuBar mbar;
     JMenuItem ito,itt,its;
     JMenu menu;
     JTextField [][]tx = new JTextField [9][9];
     GridLayout gri;
     JPanel chess= new JPanel();;
     int[][] ans = new int[9][9];
     int []a = new  int [11];
     int [][]num = new int[9][9];
     int [][]fat = {
                 {8,7,1,9,3,2,6,4,5},
                 {4,9,5,8,6,1,2,3,7},
                 {6,3,2,7,5,4,8,1,9},
                 {5,2,8,4,7,3,1,9,6},
                 {9,1,3,6,2,5,7,8,4},
                 {7,6,4,1,9,8,3,5,2},
                 {2,8,7,3,4,9,5,6,1},
                 {1,4,6,5,8,7,9,2,3},
                 {3,5,9,2,1,6,4,7,8},
     };
     gra(){
     }
     gra(String name,int a,int b,int c,int d){
         ints(name);
         setLocation(a,b);
         setSize(c,d);
         setVisible(true);
         set();
         setDefaultCloseOperation(EXIT_ON_CLOSE);
     }
     void Show(){
         chess.updateUI();
         chess.removeAll();
         gri = new GridLayout(9,9);
         for(int i = 0 ; i < 9 ; i++)
             for(int j = 0 ; j <9 ; j++){
                 String s = String.valueOf(num[i][j]);
                 int n = ran.nextInt(13);
                 if(n%4==0){
                     ans [i][j] = num [i][j];
                     JLabel text = new JLabel(s,JLabel.CENTER);
                     text.setForeground(Color.white);
                     chess.add(text);
                 }else{
                     tx[i][j] = new JTextField();
                     tx[i][j].setHorizontalAlignment(SwingConstants.CENTER);
                     chess.add(tx[i][j]);
                 }
             }
         chess.setLayout(gri);
         chess.setBackground(Color.DARK_GRAY);
         add(chess);
     }
     void set(){
         ito.addActionListener(new ActionListener(){
             public void actionPerformed(ActionEvent e) {
                 setVisible(false);
                 calc();
                 Show();
                 setVisible(true);
             }
         });
         itt.addActionListener(new ActionListener(){
             public void actionPerformed(ActionEvent e) {
                         judge();
             }
         });
         its.addActionListener(new ActionListener() {
             public void actionPerformed(ActionEvent e) {
                 setVisible(false);
             }
         });

     }
     void ints(String s){
         setTitle(s);
         mbar = new JMenuBar();
         menu = new JMenu("菜单");
         ito = new JMenuItem("开始");
         itt = new JMenuItem("提交");
         its = new JMenuItem("退出");
         menu.add(ito);
         menu.add(itt);
         menu.add(its);
         mbar.add(menu);
         setJMenuBar(mbar);
     }
     void calc(){
         boolean []b = new boolean[11];
         int i = 0;
         b[0] = true;
         while(i<9){
             int n = ran.nextInt(10);
             if(!b[n]) {
                 a[i++] = n;
                 b[ n ] = true;
             }
         }
         for(int k = 0 ; k < 9 ; k++)
             for(int m = 0 ; m < 9 ; m++)
                 for(int n = 0 ; n < 9 ; n++){
                     if(fat[m][n]==a[ k ] && k != 8){
                         num[m][n] = a[k+1];
                     }else if(fat[m][n]==a[k]&&k == 8){
                         num[m][n] = a[0];
                     }
                 }
     void judge(){
         int falg = 0;
         for(int i = 0 ; i < 9 ; i++)
             for(int j = 0 ; j < 9 ; j++){
                 if(ans[i][j] == 0) {
                     int tmp = Integer.valueOf(tx[i][j].getText());
                     ans[i][j] = tmp;
                 }
             }
         for(int i = 0 ; i < 9 ; i++){
             boolean[]h = new boolean[10];
             boolean[]s = new boolean[10];
             for(int j = 0 ; j < 9 ; j++){
                 if(!h[ans[i][j]]&&!s[ans[i][j]]){
                     h[ans[i][j]] = true;
                     s[ans[i][j]] = true;
                 }else {
                     falg = 1;
                     break;
                 }
             }
             if(falg == 1) break;
         }
         if(falg == 1) {
             JFrame a = new JFrame("错误");
             JTextField text = new JTextField("你的答案错了");
             text.setHorizontalAlignment(SwingConstants.CENTER);
             a.add(text);
             a.setSize(200,200);
             a.setLocation(500,500);
             a.setVisible(true);
         }else{
             JFrame a = new JFrame("成功");
             JTextField text = new JTextField("你的答案正确");
             text.setHorizontalAlignment(SwingConstants.CENTER);
             text.setForeground(Color.red);
             a.add(text);
             a.setSize(200,200);
             a.setLocation(500,500);
             a.setVisible(true);
         }
     }
 }
     

gra