simplemaths.java

本程序用Java语言描述了一个普通加减法练习

import java.applet.Applet;
import java.applet.AudioClip;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.net.URL;

import javax.swing.BorderFactory;
import javax.swing.ButtonGroup;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JRadioButton;
import javax.swing.JTextField;
import javax.swing.KeyStroke;

public class SimpleMaths extends JFrame implements ActionListener{
	private static final long serialVersionUID = 3617859655330969141L; //警告提示后加进去的，但不知道有什么用
	private static int keys = 0;                 //记录临时参考答案
	private static String[] question;            //问题记录集
	private static String[] answer;              //答题的记录集
	private static int[] key;                   //参考答案记录集
	private static int numOfItem;               //记录临时标题号
	private static int rangeOfQuestion;        //记录计算范围
	private static int sumOfQuestion;         //记录问题总数
	private static int numOfQuestion;            //记录临时题目号
	private static double recordOfExam;           //记录临时分数
	private static String historyName;           //记录历史记录的名字
	private static int screenHeight = (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight();//获取屏高
	private static int screenWidth = (int)Toolkit.getDefaultToolkit().getScreenSize().getWidth();//获取屏高
	AudioClip audioClip,exam,exercise,goodhistory,badhistory;        //音频记录集
	boolean examFocus = false,exerciseFocus = false,historyFocus = false;        //启动音频判断
	JDialog examMode,exerciseMode;                     //模式对话框
	JLabel lblNum;                         //标题的标签
	JLabel lblQuestion;                  //问题的标签
	JLabel lblKey = new JLabel("");     //练习模式中的答案标签
	JTextField Answer;                   //答案输入框
	JMenu mFile,mSearch,mMusic,mHelp;     //菜单标题集
	JMenuItem mFile_NewTurn,mFile_Exit;     //文件按钮集
	JMenuItem mSearch_History;             //历史记录按钮
	JCheckBoxMenuItem mMusic_BackMusic;         //背景音乐   
	JMenuItem mHelp_HelpTopics, mHelp_About;     // 帮助按钮集
	JButton NextQuestion,FrontQuestion,Complete,SearchKey;   //模式内的按钮集
	File HistoryList;                    //历史记录保存文件
	public SimpleMaths(){          //构造函数
		super("数学加减法");     //构造标题
		JMenuBar MenuBar = new JMenuBar();   //创建标题栏及各标题
		this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //关闭主线程
		mFile = new JMenu("文件(F)", true);
		mSearch = new JMenu("查看(S)", true);
		mMusic = new JMenu("背景音乐(B)", true);
		mHelp = new JMenu("帮助(H)", true);
		mFile.setMnemonic('F');                //添加快捷键"alt"+相应的字母
		mSearch.setMnemonic('S');
		mMusic.setMnemonic('B');
		mHelp.setMnemonic('H');
		MenuBar.add(mFile);                    //向菜单栏中添加下拉按钮
		MenuBar.add(mSearch);
		MenuBar.add(mMusic);
		MenuBar.add(mHelp);
		mFile_NewTurn = new JMenuItem("重新开始(N)", 'N');
		mFile_Exit = new JMenuItem("退出(X)", 'X');
		mFile_NewTurn.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N, InputEvent.CTRL_MASK));//快捷键
		mFile_NewTurn.addActionListener(this); // 注册事件监听
		mFile_Exit.addActionListener(this);
		mFile.add(mFile_NewTurn); // 新一轮菜单项
		mFile.add(mFile_Exit);
		
		mSearch_History = new JMenuItem("历史记录(H)", 'H');
		mSearch_History.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_H, InputEvent.CTRL_MASK));
		mSearch_History.addActionListener(this);
		mSearch.add(mSearch_History);
		
		mMusic_BackMusic = new JCheckBoxMenuItem("音乐开关(M)");
		mMusic_BackMusic.setMnemonic('W');
		mMusic_BackMusic.setState(true);
		mMusic_BackMusic.addActionListener(this);
		mMusic.add(mMusic_BackMusic);
		
		mHelp_HelpTopics = new JMenuItem("帮助(H)", 'H');
		mHelp_About = new JMenuItem("关于(A)", 'A');
		mHelp_HelpTopics.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F1, 0));
		mHelp_HelpTopics.addActionListener(this);
		mHelp_About.addActionListener(this);
		mHelp.add(mHelp_HelpTopics);
		mHelp.add(mHelp_About);
		
		JLabel pic = new JLabel(new ImageIcon("icon/background.gif"));
		pic.setPreferredSize(new Dimension(600,450));
		
		this.setJMenuBar(MenuBar);
		this.add(pic);
		this.setSize(600, 500);      //设置对话框大小
		this.setResizable(false);   //大小不可变
		this.setLocation(screenWidth/2-300,screenHeight/2-250); //设置显示位置，屏中央
		this.setVisible(true);     //显示对话框
		
		URL url = getClass().getResource("audio/theme.au");  //记录声音路径
		audioClip = Applet.newAudioClip(url);                 //获取声音文件
		url = getClass().getResource("audio/exam.au");
		exam = Applet.newAudioClip(url);
		url = getClass().getResource("audio/exercise.au");
		exercise = Applet.newAudioClip(url);
		url = getClass().getResource("audio/badhistory.mid");
		badhistory = Applet.newAudioClip(url);
		url = getClass().getResource("audio/goodhistory.au");
		goodhistory = Applet.newAudioClip(url);
		audioClip.loop();                                  //播放该文件
	}
	
	public static String grade(int num){//评分方法
		String instrument;
		int rightnum = 0;
		double record;
		for(int i = 0;i < num;i ++){
			if(answer[i].equals(String.valueOf(key[i]))) rightnum ++;
		}
		record = (int)(rightnum * 10000 / sumOfQuestion) / 100;
		if(record < 60){
			instrument = "很遗憾，你没有及格！你的分数是：" + record;
		}
		else if(record < 70){
			instrument = "加把劲，你能做得更好！你的分数是：" + record;
		}
		else if(record < 80){
			instrument = "再加把劲，争取做到更棒！你的分数是：" + record;
		}
		else if(record < 90){
			instrument = "做得好，别骄傲，你能做到最好！你的分数是：" + record;
		}
		else if(record < 100){
			instrument = "非常好，成绩很优秀！你的分数是：" + record;
		}
		else instrument = "太棒了，你是最优秀的！你得到了：" + record;
		recordOfExam = record;
		return instrument;
	}
	
	public void checklist(){//确认是否保存记录
		if(numOfQuestion == sumOfQuestion){
			int exitChoice = JOptionPane.showConfirmDialog(this, "你确定完成了么？", "确认", JOptionPane.YES_NO_OPTION);
			if(exitChoice == JOptionPane.YES_OPTION){
				int saveChoice = JOptionPane.showConfirmDialog(this, grade(sumOfQuestion) + "分，是否保存？", "成绩", JOptionPane.YES_NO_OPTION);
				examMode.dispose();
				mSearch_History.setEnabled(true);
				exam.stop();
				examFocus = false;
				if (saveChoice == JOptionPane.YES_OPTION) {
					historyName = JOptionPane.showInputDialog("请输入你的名字：");
					savehistory();
				}
			}
		}
		else{
			int exitChoice = JOptionPane.showConfirmDialog(this, "你尚未完成，确定退出？", "确认", JOptionPane.YES_NO_OPTION);
			if(exitChoice == JOptionPane.YES_OPTION){
				int saveChoice = JOptionPane.showConfirmDialog(this, "                你尚未完成！\n" + grade(numOfQuestion) + "分，是否保存？", "成绩", JOptionPane.YES_NO_OPTION);
				examMode.dispose();
				mSearch_History.setEnabled(true);
				exam.stop();
				examFocus = false;
				if (saveChoice == JOptionPane.YES_OPTION) {
					historyName = JOptionPane.showInputDialog("请输入你的名字：");
					savehistory();
				}
			}
		}
	}
	
	public void savehistory(){//保存历史记录
		String[][] historyRecord = new String[10][2];
		String str;
		int i = 0;
		try{
			FileReader fr = new FileReader("History.dat");
			BufferedReader bfr = new BufferedReader(fr);
			while ((str = bfr.readLine()) != null) { // 每次读取一行，直到文件结束
				historyRecord[i][0] = str;
				historyRecord[i][1] = bfr.readLine();
				i ++;
			}
			fr.close();
		}catch (IOException io){}
		String sth = "";
		if(i == 10){
			for(int j = 0;j < i;j ++){
				if(Double.parseDouble(historyRecord[j][1]) <= recordOfExam){
					for(int k = i - 1;k > j; k --){
						historyRecord[k][0] = historyRecord[k - 1][0];
						historyRecord[k][1] = historyRecord[k - 1][1];
					}
					historyRecord[j][0] = historyName;
					historyRecord[j][1] = recordOfExam + "";
					break;
				}
			}
			for(int x = 0;x < 10;x ++)
				sth += historyRecord[x][0] + '\r' + historyRecord[x][1] + '\r';
		}
		else if(i > 0){
			for(int j = 0;j < i;j ++){
				if(Double.parseDouble(historyRecord[j][1]) <= recordOfExam){
					for(int k = i;k > j; k --){
						historyRecord[k][0] = historyRecord[k - 1][0];
						historyRecord[k][1] = historyRecord[k - 1][1];
					}
					historyRecord[j][0] = historyName;
					historyRecord[j][1] = recordOfExam + "";
					break;
				}
				else if(Double.parseDouble(historyRecord[i - 1][1]) > recordOfExam){
					historyRecord[i][0] = historyName;
					historyRecord[i][1] = recordOfExam + "";
				}
			}
			for(int x = 0;x < i + 1 && x < 10;x ++)
				sth += historyRecord[x][0] + '\r' + historyRecord[x][1] + '\r';
		}
		else
			sth = historyName + '\r' + recordOfExam + '\r';
		
		try{
			FileWriter fw = new FileWriter("History.dat");
		    fw.write(sth);
			fw.close();
		}catch (Exception e){}
		if(recordOfExam >= 60&&mMusic_BackMusic.getState()) goodhistory.loop();
		else if(mMusic_BackMusic.getState()) badhistory.loop();
		showhistory();
	}
	
	public void showhistory(){ //显示历史记录
		JPanel panel0,panel1,panel2,panel3,panel4,panel5,panel6,panel7,panel8,panel9,panel10;
		String[][] historyRecord = new String[10][2];
		String str;
		int i = 0;
		try{
			FileReader fr = new FileReader("History.dat");
			BufferedReader bfr = new BufferedReader(fr);
			while ((str = bfr.readLine()) != null) { // 每次读取一行，直到文件结束
				historyRecord[i][0] = str;
				historyRecord[i][1] = bfr.readLine();
				i ++;
			}
			fr.close();
		}catch (IOException io){}
		if(i == 0){
			JOptionPane.showMessageDialog(this,"历史记录为空！", "空历史", JOptionPane.INFORMATION_MESSAGE);
		}
		else{ //创建历史记录显示对话框
			historyFocus = true;
			final JDialog historyList = new JDialog(this,"历史记录列表",false);
			Container con = historyList.getContentPane();
			con.setLayout(new FlowLayout(FlowLayout.LEFT));
			panel0 = new JPanel();
			panel1 = new JPanel();
			panel2 = new JPanel();
			panel3 = new JPanel();
			panel4 = new JPanel();
			panel5 = new JPanel();
			panel6 = new JPanel();
			panel7 = new JPanel();
			panel8 = new JPanel();
			panel9 = new JPanel();
			panel10 = new JPanel();
			
			Font historyFont = new Font("", Font.BOLD, 30);
			Font listFont = new Font("", Font.BOLD, 20);
			JLabel lblhistory = new JLabel("            成绩排名          ");
			JLabel lbl1 = new JLabel("                             姓名");
			JLabel lbl2 = new JLabel("                                      分数");
			JLabel lblhistory1 = new JLabel("第一名  ");
			JLabel lblhistory2 = new JLabel("第二名  ");
			JLabel lblhistory3 = new JLabel("第三名  ");
			JLabel lblhistory4 = new JLabel("第四名  ");
			JLabel lblhistory5 = new JLabel("第五名  ");
			JLabel lblhistory6 = new JLabel("第六名  ");
			JLabel lblhistory7 = new JLabel("第七名  ");
			JLabel lblhistory8 = new JLabel("第八名  ");
			JLabel lblhistory9 = new JLabel("第九名  ");
			JLabel lblhistory10 = new JLabel("第十名  ");
			JLabel lblhistory1a = new JLabel(historyRecord[0][0]);
			JLabel lblhistory2a = new JLabel(historyRecord[1][0]);
			JLabel lblhistory3a = new JLabel(historyRecord[2][0]);
			JLabel lblhistory4a = new JLabel(historyRecord[3][0]);
			JLabel lblhistory5a = new JLabel(historyRecord[4][0]);
			JLabel lblhistory6a = new JLabel(historyRecord[5][0]);
			JLabel lblhistory7a = new JLabel(historyRecord[6][0]);
			JLabel lblhistory8a = new JLabel(historyRecord[7][0]);
			JLabel lblhistory9a = new JLabel(historyRecord[8][0]);
			JLabel lblhistory10a = new JLabel(historyRecord[9][0]);
			JLabel lblhistory1b = new JLabel(historyRecord[0][1]);
			JLabel lblhistory2b = new JLabel(historyRecord[1][1]);
			JLabel lblhistory3b = new JLabel(historyRecord[2][1]);
			JLabel lblhistory4b = new JLabel(historyRecord[3][1]);
			JLabel lblhistory5b = new JLabel(historyRecord[4][1]);
			JLabel lblhistory6b = new JLabel(historyRecord[5][1]);
			JLabel lblhistory7b = new JLabel(historyRecord[6][1]);
			JLabel lblhistory8b = new JLabel(historyRecord[7][1]);
			JLabel lblhistory9b = new JLabel(historyRecord[8][1]);
			JLabel lblhistory10b = new JLabel(historyRecord[9][1]);
			JButton Ok = new JButton("确定");
			
			Ok.addActionListener(new ActionListener(){
				public void actionPerformed(ActionEvent e){
					historyList.dispose();
					historyFocus = false;
					mSearch_History.setEnabled(true);
					goodhistory.stop();
					badhistory.stop();
					if(mMusic_BackMusic.getState()) audioClip.loop();
				}
			});
			historyList.addWindowListener(new WindowAdapter(){//关闭窗口时的音乐判断
				public void windowClosing(WindowEvent evt){
					mSearch_History.setEnabled(true);
					historyFocus = false;
					goodhistory.stop();
					badhistory.stop();
					if(mMusic_BackMusic.getState()) audioClip.loop();
				}
			});
			
			lblhistory.setFont(historyFont);
			lblhistory1.setFont(listFont);
			lblhistory2.setFont(listFont);
			lblhistory3.setFont(listFont);
			lblhistory4.setFont(listFont);
			lblhistory5.setFont(listFont);
			lblhistory6.setFont(listFont);
			lblhistory7.setFont(listFont);
			lblhistory8.setFont(listFont);
			lblhistory9.setFont(listFont);
			lblhistory10.setFont(listFont);
			lblhistory1a.setFont(historyFont);
			lblhistory2a.setFont(historyFont);
			lblhistory3a.setFont(historyFont);
			lblhistory4a.setFont(historyFont);
			lblhistory5a.setFont(historyFont);
			lblhistory6a.setFont(historyFont);
			lblhistory7a.setFont(historyFont);
			lblhistory8a.setFont(historyFont);
			lblhistory9a.setFont(historyFont);
			lblhistory10a.setFont(historyFont);
			lblhistory1b.setFont(historyFont);
			lblhistory2b.setFont(historyFont);
			lblhistory3b.setFont(historyFont);
			lblhistory4b.setFont(historyFont);
			lblhistory5b.setFont(historyFont);
			lblhistory6b.setFont(historyFont);
			lblhistory7b.setFont(historyFont);
			lblhistory8b.setFont(historyFont);
			lblhistory9b.setFont(historyFont);
			lblhistory10b.setFont(historyFont);
			
			lblhistory1a.setPreferredSize(new Dimension(140, 25));
			lblhistory2a.setPreferredSize(new Dimension(140, 25));
			lblhistory3a.setPreferredSize(new Dimension(140, 25));
			lblhistory4a.setPreferredSize(new Dimension(140, 25));
			lblhistory5a.setPreferredSize(new Dimension(140, 25));
			lblhistory6a.setPreferredSize(new Dimension(140, 25));
			lblhistory7a.setPreferredSize(new Dimension(140, 25));
			lblhistory8a.setPreferredSize(new Dimension(140, 25));
			lblhistory9a.setPreferredSize(new Dimension(140, 25));
			lblhistory10a.setPreferredSize(new Dimension(140, 25));
			Ok.setPreferredSize(new Dimension(300, 25));
			
			panel0.add(lbl1);
			panel0.add(lbl2);
			panel1.add(lblhistory1);
			panel2.add(lblhistory2);
			panel3.add(lblhistory3);
			panel4.add(lblhistory4);
			panel5.add(lblhistory5);
			panel6.add(lblhistory6);
			panel7.add(lblhistory7);
			panel8.add(lblhistory8);
			panel9.add(lblhistory9);
			panel10.add(lblhistory10);
			panel1.add(lblhistory1a);
			panel2.add(lblhistory2a);
			panel3.add(lblhistory3a);
			panel4.add(lblhistory4a);
			panel5.add(lblhistory5a);
			panel6.add(lblhistory6a);
			panel7.add(lblhistory7a);
			panel8.add(lblhistory8a);
			panel9.add(lblhistory9a);
			panel10.add(lblhistory10a);