words.java

200多个自己编的java程序,大家可以学一下.

/*
 * 英语单词填空.java
 *
 * Created on 2004年9月25日, 上午11:01
 */

/**
 *
 * @author  litertiger
 */
import java.util.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class words extends Frame implements ItemListener, ActionListener{
    String str[]=new String[7];
    String s;
    FileReader file;
    BufferedReader in;
    Button button_start;
    Checkbox box[];
    TextField text1,text2;
    int fenshu=0;
    CheckboxGroup age=new CheckboxGroup();
    
    /** Creates a new instance of 英语单词填空 */
    public words() {
        super("英语单词学习");
        text1=new TextField(10);
        text2=new TextField(70);
        button_start=new Button("重新练习");
        button_start.addActionListener(this);
        try{
            file=new FileReader("English.txt");
            in =new BufferedReader(file);
            
        }
        catch(FileNotFoundException e)
        {
            System.out.println("没有找到文件");
        }
        catch(IOException e)
        {
            
        }
        setBounds(100,100,400,320);
        setVisible(true);
        setLayout(new GridLayout(5,1));
        setBackground(Color.pink);
        Panel p1=new Panel(),p2=new Panel(),p3=new Panel(),p4=new Panel();
        p2.setLayout(new GridLayout(2,1));
        p3.setLayout(new GridLayout(5,1));
        p1.add(new Label("你的 得分 :"));
        p1.add(text1);
        p2.add(button_start);
        box=new Checkbox[6];
        for(int i=0;i<=4;i++)
        {
            box[i]=new Checkbox("",false,age);
            box[i].addItemListener(this);
        }
        p3.add(new Label("选择答案"));
        for(int i=1;i<=4;i++)
        {
            p3.add(box[i]);
            add(p1);
            add(p2);
            add(new Label());
            add(p3);
            add(p4);
            addWindowListener(new WindowAdapter()
            {
                
                public void windowClosing(WindowEvent w)
                {
                    setVisible(false);
                    System.exit(0);
                }
            });
            reading();
        }

        
        
        
        
    }
    public void reading()
    {
    
        int i=0;
        try{
        
        s=in.readLine();
        if(!(s.startsWith("endend"))){
            StringTokenizer tokenizer=new StringTokenizer(s,"#");
            while(tokenizer.hasMoreTokens())
            {
                str[i]=tokenizer.nextToken();
                i++;
                
            }
            text1.setText(str[0]);
            for(int j=1;j<=4;j++)
            {
                box[j].setLabel(str[j]);
            }
        }
        else if(s.startsWith("endend"))
        {
            text2.setText("学习完毕");
            
            for(int j=1;j<=4;j++)
            {
            box[j].setLabel("end");
            in.close();
            file.close();
            
            }
        }
        
        }
        catch(IOException e)
        {
            
        }
    }
    
    public void actionPerformed(ActionEvent e) {
        if(e.getSource()==button_start)
        {
        file=null;
        in=null;
        fenshu=0;
        text2.setText("得分:"+fenshu);
        try{
            file=new FileReader("English.txt");
            in=new BufferedReader(file);
            
        }
        catch(FileNotFoundException ex)
        {}
        catch(IOException IOe)
        {}
        reading();
        
        }
    }
    
    public void itemStateChanged(ItemEvent e) {
        for(int j=1;j<=4;j++)
        {
            if(box[j].getLabel().equals(str[5])&&box[j].getState())
            {
                fenshu++;
                text2.setText("得分 :"+fenshu);
            }
           
        }
         reading();
    }
    
    
}