题目要求：
制作一个数独游戏。数据游戏拼图由一个3*3的九宫格组成，每个格式又分成一个小九宫格，共九九八十一个小格子。游戏规则：游戏开始前会有一些格式了写好了1-9的数，在剩下的格式里填写1-9的数，直到把所有格式填满，要求任何一行或一列或者任一个小九宫中没有相同的数字。拼图示例如下：

任务要求：
（1） 可以根据在九宫格中初始给出的数字个数设定游戏难度，如初始给出30个数设定为难、35个数设定为中等难度、40个数设定为容易。
（2） 对于初始给出的数据要能验证题目的合法性（即验证给出数据本身是否符合游戏规则，行、列及小九宫中不能出现重复数字1-9），对玩游戏中填入的数字在提交后要能验证其正确性（任何一行或一列或者任一个小九宫中没有相同的数字）。
（3） 程序能保存玩家的信息、游戏记录以及成绩（最高分），并能够在游戏结束时查看玩家排名。

工作流程如下：

该数独游戏需要连接数据库，登录用户和保存数据记录，连接数据库创建表等暂不作显示。主要数独游戏部分（除去登录页面，注册页面，查看排名页面不做显示）分为Main（生成数独，将生成100个数独保存在文件中，也可以不保存，每次生成数独都为一次新的数独不做记录，效率较差）和Play（数独显示页面，同时包括填写数独和判断数独是否正确）两类。
1、Main类

package shudu;import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.SystemColor;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Random;import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;public class Main {private int[][] Arry;   //得到一个9*9的数独private int[][] shudu;  //挖空arry数组中的数字private int[][] answer; //存储数独答案private int[][] game;  //最终数独private int grade; private int[] row; //每一行的个数private int[] col;  //每一列的个数private int[] places;  //每一个九宫格的个数private boolean flag=false;//读取文件名private String filename=new String("C:\\Users\\liaolilan\\Desktop\\shudu.txt");public static void main(String[] args){Main mainer=new Main();// mainer.UI();}public void  UI(){for(int k=0;k<100;k++){this.Arry=new int[9][9];this.shudu=new int[9][9];this.game=new int[9][9];this.answer=new int[9][9];this.row=new int[9];this.col=new int[9];this.places=new int[9];this.grade=grade;flag=false;//初始化数组for(int i=0;i<9;i++)row[i]=col[i]=places[i]=9;//调试// this.answer=new int[9][9]; //最终答案存储再arry中rand();//先产生15个随机数加上随机位置,一定需要随机生成，不然就会一直都是一个数组for(int i=0;i<9;i++){for(int j=0;j<9;j++)System.out.print(Arry[i][j]);System.out.println();}dfs(Arry,0);//获得一个数组答案d// diger(grade);//挖空数组//将100个数独写入文件中try{String data = "";File file =new File(filename);//if file doesnt exists, then create itif(!file.exists()){file.createNewFile();}//true = append fileFileWriter fileWritter = new FileWriter(filename,true);BufferedWriter bufferWritter = new BufferedWriter(fileWritter);bufferWritter.write(k+1+"\r\n");for(int i=0;i<9;i++){data="";for(int j=0;j<9;j++){data=data+answer[i][j]+"";}System.out.println(data);bufferWritter.write(data+"\r\n");}bufferWritter.close();System.out.println("Done");}catch(IOException e){e.printStackTrace();}}}//随机给数public void rand(){int t=0;//t=14不随机性太高，容易产生没有解的数独，经过参考资料发现，当t=6的时候，几乎100%有解while(t<6){int x=new Random().nextInt(9);int y=new Random().nextInt(9); int i=new Random().nextInt(9)+1;if(Arry[x][y]==0){if(istrue(Arry,x,y,i)){  //判断数是否能填Arry[x][y]=i;t++;}}}}//判断在arry[x][y]上是否能放numpublic boolean istrue(int arry[][],int x,int y,int num){//横竖是否有numfor(int i=0;i<9;i++){if(arry[x][i]==num||arry[i][y]==num)return false;}for(int i=(x/3)*3;i<(x/3+1)*3;i++)for(int j=(y/3)*3;j<(y/3+1)*3;j++)if(arry[i][j]==num)return false;return true;}//根据前面放的数获得一个正确的答案，dfs获取public void dfs(int arry[][],int n){if(n<81){if(flag==true) return;int x=n/9;//x第N个数的横坐标int y=n%9;//y第N个数的纵坐标if(arry[x][y]==0){//若第N个数为0，没有被填过，则判断0~9是否能被填for(int i=1;i<10;i++){if(istrue(arry,x,y,i)){//第N个数可以填i，填入然后dfsarry[x][y]=i;dfs(arry,n+1);//dfs回溯arry[x][y]=0;}}}else{dfs(arry,n+1);}}else{//获得第一个结果,flag置true!!!!!flag=true;//将获得的数组放入shudu中然后再挖空//if(all==false){for(int i=0;i<9;i++)for(int j=0;j<9;j++)shudu[i][j]=answer[i][j]=arry[i][j];System.out.println("###################");for(int i=0;i<9;i++){for(int j=0;j<9;j++)System.out.print(arry[i][j]);System.out.println();}} }//为了避免数独无解,保证数独有唯一解//挖空数组,分难易程度,,grade为挖空个数//是否有一个行、列、九宫格已经为空boolean emptyrow=false,emptycol=false,emptyplaces=false;//挖空数、关卡public void diger(int grade,int level){this.shudu=new int[9][9];this.game=new int[9][9];this.answer=new int[9][9];this.row=new int[9];this.col=new int[9];this.places=new int[9];this.grade=grade;File file=new File(filename);BufferedReader reader = null;try {System.out.println("以行为单位读取文件内容，一次读一整行：");reader = new BufferedReader(new InputStreamReader(new FileInputStream(file),"utf-8"));// reader = new BufferedReader(new FileReader(file));String tempString = null;int line = 1,k=0;boolean flag=false;// 一次读入一行，直到读入null为文件结束while ((tempString = reader.readLine()) != null&&k<9) {// 显示行号System.out.println(" line " + line + ": " + tempString);if(tempString.equals(level+"")){flag=true;continue;}if(flag==true){for(int i=0;i<9;i++)answer[k][i]=tempString.charAt(i)-48;k++;}line++;}reader.close();} catch (IOException e) {e.printStackTrace();} finally {if (reader != null) {try {reader.close();} catch (IOException e1) {}}}for(int i=0;i<9;i++)for(int j=0;j<9;j++)shudu[i][j]=answer[i][j];int t=grade;while(t>0){//随机抽到x,yint x=new Random().nextInt(9);int y=new Random().nextInt(9);//若x,y没有被挖空则挖空x,yif(shudu[x][y]!=0){row[x]--;col[y]--;places[(y/3)*3+x/3]--;if((row[x]==0&&emptyrow)||(col[y]==0&&emptycol)||(places[(y/3)*3+x/3]==0&&emptyplaces)){System.out.println(x+" "+y+" 不可以");continue;}else{shudu[x][y]=0;t=t-1;}if(row[x]==0)emptyrow=true;if(col[y]==0)emptycol=true;if(places[(y/3)*3+x/3]==0)emptyplaces=true;}}//获得最终游戏数独for(int i=0;i<9;i++)for(int j=0;j<9;j++)game[i][j]=shudu[i][j];}//获得最终游戏数独public int[][] getArr(){int t=0;for(int i=0;i<9;i++){for(int j=0;j<9;j++){System.out.print(game[i][j]);if(game[i][j]==0)t++;}System.out.println();}System.out.println("###################");System.out.println("挖空数为:"+t);return this.game;}//获得答案数独public int[][] getAnswer(){for(int i=0;i<9;i++){for(int j=0;j<9;j++)System.out.print(answer[i][j]);System.out.println();}System.out.println("###################");return this.answer;}
}

2、Play类

package shudu;import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.SystemColor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.Border;import SQLconnect.UserDao;
import shudu.Main;
import vo.User;//游戏界面的设计
public class Play {//设置全局变量，九宫格JTextField[][] numberFields=new JTextField[9][9];//游戏数独数组int[][] gamearr=new int[9][9];//游戏答案数组int[][] answerarr=new int[9][9];//灰色Color green=new Color(93, 200, 138);Color lightGray = new Color(217, 217, 217);Color blue = new Color(102, 183, 255);//挖空数!private int grade=40;//过去的private int usedgrade=0;//计时器Timer time;JLabel timeLabel;TimerTask task;//用标签表示游戏进展JLabel labelsc=new JLabel();//创建字体，之后所有的字体为该字体Font f=new Font("方正仿宋简体", Font.BOLD, 25);//选择九宫格中的格子的坐标int sx=10;int sy=10;//是否已经看过答案private boolean isanswer;//用户名JLabel username=new JLabel();JLabel usergrade=new JLabel();private int gamegrade=0;//游戏分数//登录login loger=new login();User user=loger.user;//读取文件名private String filename=new String("C:\\Users\\liaolilan\\Desktop\\SuDoKu.txt");//以前游戏数组private int[][] usedgame=new int[9][9];//以前的游戏时间private int usedtim=1;//判断是不是新用户//是否为新用户private boolean isnew=true; //保存用户名存在在第几行private int act=-1;//关卡JLabel levels=new JLabel();int levs=1;//窗口private JFrame jf ;public Play(){//制作游戏界面System.out.println(user.getUsername()+" "+user.getUserpwd()+" "+user.getUsergrade());jf = new JFrame();jf.setTitle("数独游戏");jf.setBounds(400, 0, 1100, 1000);jf.setResizable(false);//不允许窗口最大化jf.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);//不执行任何操作;要求程序在已注册的 WindowListener 对象的 windowClosing 方法中处理该操作jf.setLocationRelativeTo(null);//居中，不用定位窗口大小jf.setVisible(true);//打开时，判断是否上一局游戏jf.addWindowListener(new WindowAdapter() {@Overridepublic void windowOpened(WindowEvent arg0) {//如果是新用户，保存数组//保存记录,读取文件,读出文件,在开始游戏的时候读出File file=new File(filename);BufferedReader reader = null;try {System.out.println("以行为单位读取文件内容，一次读一整行：");reader = new BufferedReader(new InputStreamReader(new FileInputStream(file),"utf-8"));// reader = new BufferedReader(new FileReader(file));String tempString = null;int line = 1;// 一次读入一行，直到读入null为文件结束while ((tempString = reader.readLine()) != null) {// 显示行号System.out.println(" line " + line + ": " + tempString);if(tempString.equals(user.getUsername())){act=line;isnew=false;}else if(isnew==false){//关卡levs=Integer.valueOf(tempString);System.out.println(levs);break;}line++;}reader.close();} catch (IOException e) {e.printStackTrace();} finally {if (reader != null) {try {reader.close();} catch (IOException e1) {}}}newGame(grade,levs);}});//关闭时,保存关卡记录jf.addWindowListener(new WindowAdapter() {@Overridepublic void windowClosing(WindowEvent arg0) {BufferedReader reader = null;//保存记录,读取文件,读出文件,在开始游戏的时候读出File file=new File(filename);int num=0;//第几行boolean flag=false;System.out.println("act:"+act);List list = new ArrayList();try{reader = new BufferedReader(new InputStreamReader(new FileInputStream(file),"utf-8"));// reader = new BufferedReader(new FileReader(file));String str = null;// 一次读入一行，直到读入null为文件结束while ((str = reader.readLine())!= null) {++num;System.out.println(num+"行："+str);if(isnew==false&&(num==act||num==act+1)){System.out.println(str);continue;}list.add(str);}}catch(IOException e){e.printStackTrace();}System.out.println("list size:"+list.size());System.out.println("删除成功");//重新写入try{FileWriter fileWritter = new FileWriter(filename);BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(filename), "utf-8"));//BufferedWriter bw= new BufferedWriter(fileWritter);for( int i=0;i<list.size();i++ ){System.out.println("list["+i+"]"+list.get(i));bw.write(list.get(i).toString());bw.newLine();}String data = user.getUsername();//用户名,保存用户所通过的关卡？bw.write(data+"\r\n");//关卡bw.write(levs+"\r\n");System.out.println("Done");bw.flush();bw.close();}catch(IOException e){e.printStackTrace();}System.exit(0);}});//中间数独部分JPanel bodyPanel=new JPanel();bodyPanel.setBackground(lightGray);jf.add(bodyPanel,BorderLayout.CENTER);bodyPanel.setLayout(new GridLayout(9,9,0,0));//右边布局，难易程度，计时，重新开始，换一题等选择按钮JPanel rightPanel=new JPanel();//宽度大小设置rightPanel.setPreferredSize(new Dimension(200, 789));jf.add(rightPanel, BorderLayout.EAST);//显示用户名和当前分数username.setText("用户名:  "+user.getUsername());username.setFont(f);rightPanel.add(username);usergrade.setText("总分数:   "+user.getUsergrade());usergrade.setFont(f);rightPanel.add(usergrade);//显示当前关卡levels.setText("关卡:    "+levs);levels.setFont(f);rightPanel.add(levels);//难度选择,默认为容易JLabel label1=new JLabel("请选择模式");label1.setFont(f);rightPanel.add(label1);//容易，中等，难String[] btnstr={"容易","中等","难"};for(int i=0;i<3;i++){JButton btn=new JButton(btnstr[i]);btn.setFont(f);btn.setBackground(lightGray);btn.setPreferredSize(new Dimension(120,60));//为难度按钮加上监听器btn.addActionListener(new funactionListener());rightPanel.add(btn);//加监听器}//功能按钮JLabel label2=new JLabel("功能按钮 ");label2.setFont(f);rightPanel.add(label2);//换一题JButton changebtn=new JButton("换一题");changebtn.setFont(f);changebtn.setPreferredSize(new Dimension(120,60));changebtn.setBackground(lightGray);changebtn.setForeground(Color.black);changebtn.addActionListener(new funactionListener());rightPanel.add(changebtn);//重做JButton newbtn=new JButton("重玩");newbtn.setFont(f);newbtn.setPreferredSize(new Dimension(120,60));newbtn.setBackground(lightGray);newbtn.setForeground(Color.BLACK);newbtn.addActionListener(new funactionListener());rightPanel.add(newbtn);//答案JButton answerbtn=new JButton("答案");answerbtn.setFont(f);answerbtn.setPreferredSize(new Dimension(120,60));answerbtn.setBackground(Color.red);answerbtn.setForeground(Color.WHITE);answerbtn.addActionListener(new funactionListener());rightPanel.add(answerbtn);//计时JLabel label3=new JLabel("    计时    ");label3.setFont(f);rightPanel.add(label3);timeLabel=new JLabel("00:00");timeLabel.setFont(f);rightPanel.add(timeLabel);//放一个游戏进展rightPanel.add(labelsc);labelsc.setVisible(false);//下面布局JPanel lastPanel=new JPanel();jf.add(lastPanel,BorderLayout.SOUTH);lastPanel.setPreferredSize(new Dimension(1333, 100));lastPanel.setLayout(new GridLayout(0, 10, 0, 0));//放选择按钮JButton[] setNum=new JButton[10];for(int i=0;i<10;i++){if(i==9){setNum[i]=new JButton("清除");//加清除的监听器}else{setNum[i]=new JButton(i+1+"");//加按钮的监听器}setNum[i].setFont(f);setNum[i].setForeground(Color.WHITE);setNum[i].setBackground(green);setNum[i].setPreferredSize(new Dimension(90,70));setNum[i].setFocusPainted(false);//加下方按钮监听器setNum[i].addActionListener(new buttonaction());lastPanel.add(setNum[i]);}//对中间布局进行控制//组件边框Border centernBorder = BorderFactory.createMatteBorder(1, 1, 1, 1, Color.GRAY);Border rightAndBottomBorder = BorderFactory.createMatteBorder(1, 1, 4, 4, Color.GRAY);Border bottomBorder = BorderFactory.createMatteBorder(1, 1, 4, 1, Color.GRAY);Border rightBorder = BorderFactory.createMatteBorder(1, 1, 1, 4, Color.GRAY);//循环设置组件JTextField,九宫格//numberFields = new JTextField[9][9];for (int i = 0; i < 9; i++) {for (int j = 0; j < 9; j++) {//System.out.println(i+j+"");numberFields[i][j] = new JTextField();//不可编辑numberFields[i][j].setEditable(false);numberFields[i][j].setFont(new Font("微软雅黑", Font.BOLD, 35));numberFields[i][j].setHorizontalAlignment(JTextField.CENTER);numberFields[i][j].setBackground(Color.WHITE);numberFields[i][j].setForeground(Color.BLACK);//加边框！if (i == 2 && j == 2 || i == 2 && j == 5 || i == 5 && j == 2 || i == 5 && j == 5) {numberFields[i][j].setBorder(rightAndBottomBorder);} else if (j == 2 || j == 5) {numberFields[i][j].setBorder(rightBorder);} else if (i == 2 || i == 5) {numberFields[i][j].setBorder(bottomBorder);} else {numberFields[i][j].setBorder(centernBorder);}//对每个格子加上名称来标识numberFields[i][j].setName(Integer.toString(i) + Integer.toString(j));//对每个格子加上监听器numberFields[i][j].addFocusListener(new textfocusaction());;bodyPanel.add(numberFields[i][j]);}}}//开始新游戏public void newGame(int grade,int level){isanswer=false;//显示总分数usergrade.setText("总分数: "+user.getUsergrade());//显示当前关卡levels.setText("关卡:"+levs+"");Main maker=new Main();maker.diger(grade, level);gamearr=maker.getArr();answerarr=maker.getAnswer();for(int i=0;i<9;i++){for(int j=0;j<9;j++)System.out.print(answerarr[i][j]);System.out.println();}System.out.println("###################");//先清空九宫格for(int i=0;i<9;i++)for(int j=0;j<9;j++){if(gamearr[i][j]!=0){numberFields[i][j].setText(gamearr[i][j]+"");numberFields[i][j].setBackground(lightGray);numberFields[i][j].setForeground(Color.BLACK);//加监听器!}else{numberFields[i][j].setText("");numberFields[i][j].setBackground(Color.WHITE);numberFields[i][j].setForeground(Color.BLACK);}}//开始计时startTime();}//游戏开始计时public void startTime(){//游戏开始计时!time = new Timer();task = new TimerTask() {int count = usedtim;@Overridepublic void run() {timeLabel.setText(gettime(count));count++;}};time.schedule(task, 1000L, 1000L); // 开始游戏时自动计时}//时间重新计时public void restartTime(){//删除time记录，要使用过才能删除time.cancel();time=new Timer();timeLabel.setText("00:00");task = new TimerTask() {int count = 1;@Overridepublic void run() {timeLabel.setText(gettime(count));count++;}};time.schedule(task, 1000L, 1000L);}//将时间转换成分:秒public String gettime(int count){String second = null;String minute = null;if (count / 60 < 10) {minute = "0" + (count / 60);} else {minute = "" + (count / 60);}if (count % 60 < 10) {second = ":0" + count % 60;} else {second = ":" + count % 60;}return minute + second;}//重玩该关public void again(){//重新设置for(int i=0;i<9;i++)for(int j=0;j<9;j++){if(gamearr[i][j]!=0){numberFields[i][j].setText(gamearr[i][j]+"");numberFields[i][j].setBackground(lightGray);//加监听器!}}}//输出答案!!public void answer(){//gamearr中为0的地方放答案！！for(int i=0;i<9;i++)for(int j=0;j<9;j++){if(gamearr[i][j]==0){numberFields[i][j].setText(answerarr[i][j]+"");numberFields[i][j].setForeground(Color.RED);}}}//清空九宫格！！！重新对获取新数独public void resetfields(){for(int i=0;i<9;i++)for(int j=0;j<9;j++){numberFields[i][j].setText("");numberFields[i][j].setBackground(Color.WHITE);}}//下面为各事件的处理!!!//右边处理数独按钮监听器（难度类别监听，换一题，重玩，答案）class funactionListener implements ActionListener{//难度监听器String btnstr;@Overridepublic void actionPerformed(ActionEvent e) {// TODO Auto-generated method stubbtnstr=e.getActionCommand();if(btnstr.equals("容易")){grade=40;//若选择按钮难度为容易，重新开始游戏resetfields();newGame(grade,levs);restartTime();}else if(btnstr.equals("中等")){grade=45;//若选择按钮难度为中等，重新开始游戏resetfields();newGame(grade,levs);restartTime();}else if(btnstr.equals("难")){//同上grade=50;resetfields();newGame(grade,levs);restartTime();}else if(btnstr.equals("换一题")){resetfields();newGame(grade,levs);restartTime();}//重新开始计分else if(btnstr.equals("重玩")){resetfields();again();restartTime();}//将分归零else if(btnstr.equals("答案")){answer();time.cancel();isanswer=true;}}}//九宫格数组的监听器class textfocusaction implements FocusListener{//该各自获得焦点@Overridepublic void focusGained(FocusEvent e) {// TODO Auto-generated method stubJTextField jt=(JTextField) e.getSource();//点击之前还原颜色replace();sameNumber(jt);}//该格子失去焦点,将颜色还原@Overridepublic void focusLost(FocusEvent e) {// TODO Auto-generated method stublabelsc.setVisible(false);replace();}}//处理获得焦点的文本格子public void sameNumber(JTextField jt){String name=jt.getName();System.out.println(name);int x=Integer.parseInt(name.substring(0,1));int y=Integer.parseInt(name.substring(1));String number=jt.getText();//System.out.println(x+"  "+y);if(gamearr[x][y]!=0){sx=10;sy=10;}else{sx=x;sy=y;System.out.println(sx+"  "+sy);//格子为空if(number.equals("")){//使该行该列和该小九宫格的颜色置blue，提醒用户for(int i=0;i<9;i++){numberFields[i][sy].setBackground(blue);numberFields[sx][i].setBackground(blue);}for(int i=(sx/3)*3;i<((sx/3)+1)*3;i++)for(int j=(sy/3)*3;j<((sy/3)+1)*3;j++)numberFields[i][j].setBackground(blue);numberFields[sx][sy].setBackground(green);}//格子不为空，使与格子相同的数显示粉色else{for(int i=0;i<9;i++)for(int j=0;j<9;j++)if(numberFields[i][j].getText().equals(number))numberFields[i][j].setBackground(Color.pink);}}}//使格子颜色还原public void replace(){if(sx<10&&sy<10){for(int i=0;i<9;i++){if(gamearr[i][sy]!=0)numberFields[i][sy].setBackground(lightGray);elsenumberFields[i][sy].setBackground(Color.WHITE);if(gamearr[sx][i]!=0)numberFields[sx][i].setBackground(lightGray);elsenumberFields[sx][i].setBackground(Color.WHITE);}for(int i=(sx/3)*3;i<((sx/3)+1)*3;i++)for(int j=(sy/3)*3;j<((sy/3)+1)*3;j++)if(gamearr[i][j]!=0)numberFields[i][j].setBackground(lightGray);elsenumberFields[i][j].setBackground(Color.WHITE);for(int i=0;i<9;i++)for(int j=0;j<9;j++)if(numberFields[i][j].getText().equals(numberFields[sx][sy].getText())&&!(i==sx&&j==sy)){if(gamearr[i][j]!=0)numberFields[i][j].setBackground(lightGray);elsenumberFields[i][j].setBackground(Color.WHITE);}}}//为下方的按钮增加监听器class buttonaction implements ActionListener{@Overridepublic void actionPerformed(ActionEvent e) {// TODO Auto-generated method stubString btnstr;btnstr=e.getActionCommand();replace();//如果按钮为清除，则将格子置空if(btnstr.equals("清除")&&(sx<10&&sy<10)){numberFields[sx][sy].setText("");numberFields[sx][sy].setBackground(Color.white);}//若为其他的，在格子中放入值else if(sx<10&&sy<10){numberFields[sx][sy].setText(btnstr);numberFields[sx][sy].setForeground(Color.blue);numberFields[sx][sy].setBackground(Color.white);//判断值放的是否正确，若不正确，则将该值和相冲突的格子背景颜色置为红色jugewrong(btnstr);}}}//判断值放的是否正确，若不正确，则将该值和相冲突的格子背景颜色置为红色public void jugewrong(String number){boolean flag=false; //该值是否正确//行列是否有相同的for(int i=0;i<9;i++){if(i!=sy&&(numberFields[sx][i].getText().equals(number))){numberFields[sx][i].setBackground(Color.red);flag=true;}if(i!=sx&&(numberFields[i][sy].getText().equals(number))){numberFields[i][sy].setBackground(Color.red);flag=true;}}//小九宫格内是否有已经存在过这个值for(int i=(sx/3)*3;i<((sx/3)+1)*3;i++)for(int j=(sy/3)*3;j<((sy/3)+1)*3;j++){if(!(i==sx&&j==sy)&&(numberFields[i][j].getText().equals(number))){numberFields[i][j].setBackground(Color.red);flag=true;}}if(flag){labelsc.setText("已有该数字,请检查!");labelsc.setFont(new Font("方正仿宋简体", Font.BOLD, 21));labelsc.setForeground(Color.RED);labelsc.setVisible(true);}else{//挑战成功后!!!if(isanswer==false&&gamesc()){//关卡加一levs++;time.cancel();String runtime=new String();runtime=timeLabel.getText();System.out.println(runtime);//转换成秒int tim=((runtime.charAt(0)-48)*10+(runtime.charAt(1))-48)*60+(runtime.charAt(3)-48)*10+runtime.charAt(4)-48;//计分规则System.out.println(tim);if(grade==40){if(tim<=180)gamegrade=80;else if(tim<=600)gamegrade=70;else if(tim<=1800)gamegrade=60;elsegamegrade=50;}else if(grade==45){if(tim<=180)gamegrade=90;else if(tim<=600)gamegrade=85;else if(tim<=1800)gamegrade=75;elsegamegrade=65;}else{if(tim<=180)gamegrade=100;else if(tim<=600)gamegrade=90;else if(tim<=1800)gamegrade=85;elsegamegrade=80;}user.setUsergrade(user.getUsergrade()+gamegrade);System.out.println(user.getUsergrade());UserDao dao=new UserDao();dao.modifyuser(user);//弹出一个成功的对话框!Object[] options = { "查看排名", "继续挑战"}; //查看排名是0，继续挑战是1int x = JOptionPane.showOptionDialog(null, "挑战成功!分数为"+gamegrade,  "挑战成功!",JOptionPane.DEFAULT_OPTION, JOptionPane.INFORMATION_MESSAGE, null, options, options[0]);System.out.println(x);if(x==0){rank ranker;ranker=new rank();//newGame(grade);}else{newGame(grade,levs);}}}}//判断点完之后数独是否成功!public boolean gamesc(){for(int i=0;i<9;i++)for(int j=0;j<9;j++){System.out.println(numberFields[i][j].getText());System.out.println("点击!");if(numberFields[i][j].getText().equals("")){// System.out.println("111失败!");return false;}for(int k=0;k<9;k++)if((k!=j&&numberFields[i][k].getText().equals(numberFields[i][j].getText()))||(k!=i&&numberFields[k][j].getText().equals(numberFields[i][j].getText()))){numberFields[i][j].setBackground(Color.RED);numberFields[i][k].setBackground(Color.red);return false;}for(int m=(i/3)*3;m<(i/3+1)*3;m++)for(int n=(j/3)*3;n<(j/3+1)*3;n++)if(!(m==i&&n==j)&&(numberFields[m][n].getText().equals(numberFields[i][j].getText()))){  return false;}}System.out.println("成功!");return true;}}

最后生成数独页面的效果如下：