import java.awt.*;import java.awt.event.*;import javax.swing.*;public class ButtonTest1 extends JFrame{ private JButton aB,bB,exitButton,qrButton;  private JLabel mz,fs;  private JTextField mz1,fs1;  public String mzsz[]=new String[20]; public int fssz[]=new int[20];  public ButtonTest1(){  super("testing buttons");  Container container=getContentPane();  container.setLayout(new FlowLayout());    aB=new JButton("输入学生姓名和分数");  container.add(aB);    //ButtonHandler handler=new ButtonHandler();  bB=new JButton("退出");  container.add(bB);    ButtonHandler handler=new ButtonHandler();    aB.addActionListener(handler);  bB.addActionListener(handler);    setSize(800,256);  setVisible(true); }  public static void main(String args[]){  ButtonTest1 application=new ButtonTest1();  application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);   }   void TimeTestWindow(){ JFrame frame=new JFrame("名字和分数的输入"); Container container=frame.getContentPane(); container.setLayout(new FlowLayout());  mz=new JLabel("名字:"); mz1=new JTextField(10); container.add(mz); container.add(mz1);  fs=new JLabel("分数："); fs1=new JTextField(10); container.add(fs); container.add(fs1);     qrButton=new JButton("确认          "); container.add(qrButton);  exitButton=new JButton("直接退出"); container.add(exitButton);   //setSize(800,256);    //setVisible(true);        frame.setSize(800,256);   //修改处    frame.setVisible(true);   //修改处        ButtonHandler handler=new ButtonHandler();        mz1.addActionListener(handler);    fs1.addActionListener(handler);    exitButton.addActionListener(handler);    qrButton.addActionListener(handler);     }  private class ButtonHandler implements ActionListener{  public void actionPerformed(ActionEvent event){    int i=0;         if(event.getSource()==bB)   System.exit(0);   else     if(event.getSource()==exitButton)   System.exit(0);    else       if(event.getSource()==qrButton)     //if(event.getSource()==mz1)      mzsz[i]=event.getActionCommand();      else if(event.getSource()==fs1)     { fssz[i]=Integer.parseInt(event.getActionCommand());      i++ ;      //System.out.println(mzsz[i]+fssz[i]);      JOptionPane.showMessageDialog(null,mzsz[i]+fssz[i],"测试结果",JOptionPane.INFORMATION_MESSAGE);}           else           TimeTestWindow();           //JOptionPane.showMessageDialog(ButtonTest1.this,"you pressed:"+event.getActionCommand());  } }}

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