第六項:面向對象程序設計


團隊項目:面向對象程序設計(負責人:王魯躍)
代碼地址:https://github.com/WangLuyue/test/blob/master/EnglishGame
1、代碼中的兩個類:
EnglishGame類
方法:main:程序入口
creamMenu:繪制主界面
actionPerformed:單擊鼠標觸發的事件
MyKey類:
方法:keyRealesed:當鍵盤松開時觸發的事件

2、繪制主界面

先利用creamMenu方法繪制主界面,主界面內添加“文本1”“文本2”等按鈕,和“歡迎使用英文打字測試系統”等文字。
以下是相關代碼的一部分:
public JPanel creatMenu() {
mainPanel = new JPanel();
panel0 = new JPanel();
panel1 = new JPanel();
panel2 = new JPanel();
panel3 = new JPanel();
panel4 = new JPanel();
panel5 = new JPanel();
panel6 = new JPanel();
panel7 = new JPanel();
button1 = new JButton("1.文本1");
button2 = new JButton("2.文本2");
button3 = new JButton("3.文本3");
button4 = new JButton("4.文本4");
button5 = new JButton("5.文本5");
button6 = new JButton("6.退出");
panel0.add(new JLabel("歡迎使用英文打字測試系統"));
panel1.add(new JLabel("請選擇游戲難度:"));
button1.addActionListener(this);
button2.addActionListener(this);
button3.addActionListener(this);
button4.addActionListener(this);
button5.addActionListener(this);
button6.addActionListener(this);
panel2.add(button1);
panel3.add(button2);
panel4.add(button3);
panel5.add(button4);
panel6.add(button5);
panel7.add(button6);
mainPanel.add(panel0);
mainPanel.add(panel1);
mainPanel.add(panel2);
mainPanel.add(panel3);
mainPanel.add(panel4);
mainPanel.add(panel5);
mainPanel.add(panel6);
mainPanel.add(panel7);
mainPanel.setVisible(true);
return mainPanel;
}

3、一系列的觸發事件

利用actionPerformed 和keyRealesed方法來編輯一系列的事件,使其能夠完成一系列的功能,例如鼠標單擊打開每個測試文本,單擊退出按鈕等,單擊后給出對應相應。
以下是各個相關事件的代碼:
(1)鼠標單擊觸發的事件:
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub

	String cmd = e.getActionCommand();
	date1=new Date();
	if (cmd.equals("6.退出")) 
	{
		
			System.exit(0);
	}                                                                    
	else if(cmd.equals("返回"))                                              
	{
		
	}
	else 
	{
		JFrame f1 = new JFrame("英文打字游戲");
		f1.setSize(350, 750);
		f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Container con1 = f1.getContentPane();
		panel0 = new JPanel();
		panel1 = new JPanel();
		panel2 = new JPanel();
		panel3 = new JPanel();
		panel4 = new JPanel();
		panel6 = new JPanel();
		panel7 = new JPanel();
	    tp1=new JTextPane();
		tp1.setBackground(Color.pink);
		Font size=new Font("ad",Font.BOLD,20);
		tp1.setFont(size);
		tp1.setPreferredSize(new Dimension(300,300));
		tp1.setForeground(Color.white);
		tp2=new JTextPane();
		tp2.setBackground(Color.lightGray);
		tp2.setFont(size);
		tp2.setPreferredSize(new Dimension(300,300));
		try
		{
		     if (cmd.equals("1.文本1"))
		     {                                                            
		    	 fr=new FileReader("D:\\文本1.txt");                           
		    	 frr=new File("D:\\文本1.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)
		    	 {
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     } 
		     else if (cmd.equals("2.文本2")) 
		     {
		    	 fr=new FileReader("D:\\文本2.txt");
		    	 frr=new File("D:\\文本2.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)
		    	 {
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     }
		     else if(cmd.equals("3.文本3"))
		     {
		    	 fr=new FileReader("D:\\文本3.txt");
		    	 frr=new File("D:\\文本3.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)                                       
		    	 {                                                         
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     }
		     else if (cmd.equals("4.文本4")) 
		     {
		    	 fr=new FileReader("D:\\文本4.txt");
		    	 frr=new File("D:\\文本4.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)
		    	 {
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     }
		     else if(cmd.equals("5.文本5"))
		     {
		    	 fr=new FileReader("D:\\文本5.txt");
		    	 frr=new File("D:\\文本5.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)                                       
		    	 {                                                         
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     }
		}
		catch(Exception arg)
		{
			System.out.println(arg);
		}
		button=new JButton("返回");
		button.addActionListener(this);
		panel1.add(new JLabel("參考練習:"));
		panel1.add(button);
		panel2.add(tp1);
		panel3.add(new JLabel("練習狀況:"));
		panel4.add(tp2);
		panel0.add(panel1);
		panel0.add(panel2);
		panel0.add(panel3);
		panel0.add(panel4);
		panel0.add(panel6);
		panel0.add(panel7);
		con1.add(panel0);
		f1.setVisible(true);
		tp2.requestFocus(true);
		date1=new Date();
		tp2.addKeyListener(new MyKey());
	}
}

(2)鍵盤松開時觸發的事件:

	public void keyReleased(KeyEvent arg0) {
		// TODO Auto-generated method stub
		len1=tp1.getText().length();
		len2=tp2.getText().length();
		if(len2==len1)
		{
			JFrame f2 = new JFrame("英文打字游戲");
			f2.setSize(250, 150);
			f2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			Container con2 = f2.getContentPane();
			date2=new Date();
			time=(date2.getTime()-date1.getTime())/1000;
			count=0;
			for(int i=0;i<len1;i++)
			{
				if(tp2.getText().toString().charAt(i)==tp1.getText().toString().charAt(i))
					count++;
			}
			rightrate=(double)count/len1*100;
			panel0 = new JPanel();
			panel1 = new JPanel();
			panel2 = new JPanel();
			panel3 = new JPanel();
			panel1.add(new JLabel("恭喜完成本次游戲測試!"));
			panel2.add(new JLabel("游戲總共耗時:"+time+"秒"+"平均速率:"+len1/time+"字/秒"));            
			panel3.add(new JLabel("您的正確率為:"+rightrate+"%"));
			panel0.add(panel1);                                             
			panel0.add(panel2);
			panel0.add(panel3);
			con2.add(panel0);
			f2.setVisible(true);
		}
		else if(len2>len1){
			System.exit(0);
		}
	}

4、功能測試

編寫main主函數,使程序能夠運行出來
public static void main(String[] args) {
f.setSize(200, 300);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
con.add(new EnglishGame().creatMenu());
f.setVisible(true);
System.out.println("躥吧 妮兒");

只是部分介紹的代碼功能,和簡略的描述了代碼的類和事件的發生,完整代碼如下:

import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.io.File;
import java.io.FileReader;
import java.util.Date;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextPane;
import javax.swing.SwingUtilities; //所使用的包

public class EnglishGame implements ActionListener {

private static JFrame f = new JFrame("英文打字游戲");
private static Container con = f.getContentPane();
JPanel mainPanel,panel0,panel1,panel2,panel3,panel4,panel5,panel6,panel7;
JButton button1,button2,button3,button4,button,button5,button6;
JTextPane tp1,tp2;
FileReader fr;
File frr;
Date date1,date2;
int num,len1,len2,count;
long time;
double rightrate;
char[] ch;

public void actionPerformed(ActionEvent e) {
	// TODO Auto-generated method stub

	String cmd = e.getActionCommand();
	date1=new Date();
	if (cmd.equals("6.退出")) 
	{
		
			System.exit(0);
	}                                                                    
	else if(cmd.equals("返回"))                                              
	{
		
	}
	else 
	{
		JFrame f1 = new JFrame("英文打字游戲");
		f1.setSize(350, 750);
		f1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Container con1 = f1.getContentPane();
		panel0 = new JPanel();
		panel1 = new JPanel();
		panel2 = new JPanel();
		panel3 = new JPanel();
		panel4 = new JPanel();
		panel6 = new JPanel();
		panel7 = new JPanel();
	    tp1=new JTextPane();
		tp1.setBackground(Color.pink);
		Font size=new Font("ad",Font.BOLD,20);
		tp1.setFont(size);
		tp1.setPreferredSize(new Dimension(300,300));
		tp1.setForeground(Color.white);
		tp2=new JTextPane();
		tp2.setBackground(Color.lightGray);
		tp2.setFont(size);
		tp2.setPreferredSize(new Dimension(300,300));
		try
		{
		     if (cmd.equals("1.文本1"))
		     {                                                            
		    	 fr=new FileReader("D:\\文本1.txt");                           
		    	 frr=new File("D:\\文本1.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)
		    	 {
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     } 
		     else if (cmd.equals("2.文本2")) 
		     {
		    	 fr=new FileReader("D:\\文本2.txt");
		    	 frr=new File("D:\\文本2.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)
		    	 {
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     }
		     else if(cmd.equals("3.文本3"))
		     {
		    	 fr=new FileReader("D:\\文本3.txt");
		    	 frr=new File("D:\\文本3.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)                                       
		    	 {                                                         
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     }
		     else if (cmd.equals("4.文本4")) 
		     {
		    	 fr=new FileReader("D:\\文本4.txt");
		    	 frr=new File("D:\\文本4.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)
		    	 {
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     }
		     else if(cmd.equals("5.文本5"))
		     {
		    	 fr=new FileReader("D:\\文本5.txt");
		    	 frr=new File("D:\\文本5.txt");
		    	 num=(int)frr.length();
		    	 ch=new char[num];
		    	 while(fr.read(ch)!=-1)                                       
		    	 {                                                         
		    		 String str=new String(ch);
		    		 tp1.setText(str);
		    	 }
		     }
		}
		catch(Exception arg)
		{
			System.out.println(arg);
		}
		button=new JButton("返回");
		button.addActionListener(this);
		panel1.add(new JLabel("參考練習:"));
		panel1.add(button);
		panel2.add(tp1);
		panel3.add(new JLabel("練習狀況:"));
		panel4.add(tp2);
		panel0.add(panel1);
		panel0.add(panel2);
		panel0.add(panel3);
		panel0.add(panel4);
		panel0.add(panel6);
		panel0.add(panel7);
		con1.add(panel0);
		f1.setVisible(true);
		tp2.requestFocus(true);
		date1=new Date();
		tp2.addKeyListener(new MyKey());
	}
}
   private class MyKey extends KeyAdapter{                                                                   
                                                                        
	
	public void keyReleased(KeyEvent arg0) {
		// TODO Auto-generated method stub
		len1=tp1.getText().length();
		len2=tp2.getText().length();
		if(len2==len1)
		{
			JFrame f2 = new JFrame("英文打字游戲");
			f2.setSize(250, 150);
			f2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
			Container con2 = f2.getContentPane();
			date2=new Date();
			time=(date2.getTime()-date1.getTime())/1000;
			count=0;
			for(int i=0;i<len1;i++)
			{
				if(tp2.getText().toString().charAt(i)==tp1.getText().toString().charAt(i))
					count++;
			}
			rightrate=(double)count/len1*100;
			panel0 = new JPanel();
			panel1 = new JPanel();
			panel2 = new JPanel();
			panel3 = new JPanel();
			panel1.add(new JLabel("恭喜完成本次游戲測試!"));
			panel2.add(new JLabel("游戲總共耗時:"+time+"秒"+"平均速率:"+len1/time+"字/秒"));            
			panel3.add(new JLabel("您的正確率為:"+rightrate+"%"));
			panel0.add(panel1);                                             
			panel0.add(panel2);
			panel0.add(panel3);
			con2.add(panel0);
			f2.setVisible(true);
		}
		else if(len2>len1){
			System.exit(0);
		}
	}
	
}
public static void main(String[] args) {
	// TODO Auto-generated method stub

	f.setSize(200, 300);
	f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	con.add(new EnglishGame().creatMenu());
	f.setVisible(true);
	System.out.println("躥吧 妮兒");
}

public JPanel creatMenu() {
	mainPanel = new JPanel();
	panel0 = new JPanel();
	panel1 = new JPanel();
	panel2 = new JPanel();
	panel3 = new JPanel();
	panel4 = new JPanel();                                                 
	panel5 = new JPanel();
	panel6 = new JPanel();
	panel7 = new JPanel();
	button1 = new JButton("1.文本1");                                        
	button2 = new JButton("2.文本2");
	button3 = new JButton("3.文本3");
	button4 = new JButton("4.文本4");
	button5 = new JButton("5.文本5");
	button6 = new JButton("6.退出");
	panel0.add(new JLabel("歡迎使用英文打字測試系統"));
	panel1.add(new JLabel("請選擇游戲難度:"));
	button1.addActionListener(this);
	button2.addActionListener(this);
	button3.addActionListener(this);
	button4.addActionListener(this);
	button5.addActionListener(this);
	button6.addActionListener(this);
	panel2.add(button1);
	panel3.add(button2);
	panel4.add(button3);
	panel5.add(button4);
	panel6.add(button5);
	panel7.add(button6);
	mainPanel.add(panel0);
	mainPanel.add(panel1);
	mainPanel.add(panel2);
	mainPanel.add(panel3);
	mainPanel.add(panel4);
	mainPanel.add(panel5);
	mainPanel.add(panel6);
	mainPanel.add(panel7);
	mainPanel.setVisible(true);
	return mainPanel;
}
}

5、心得體會
通過編寫代碼知道各個類的作用,實現事件的作用,編寫的過程中有些事件無法實現其功能,不過通過努力還是把代碼完成了。編寫代碼是真事件難事啊,不僅要用到你對類的認識,還要考慮要不要用到繼承等關系,理論知識的運用啊。


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