Java二级操作题 输入账号密码
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
//*********Found**********
public class Java_3 extends WindowAdapter implements ActionListener
{
private JFrame frame;
private JTextField name;
private JPasswordField pass;
private JLabel nameLabel;
private JLabel passLabel;
private JPanel textPanel;
private JPanel labelPanel;
private JButton button;
private JTextArea textArea;
public void initGUI()
{
frame=new JFrame("Frame with Dialog");
frame.addWindowListener(this);
button=new JButton("JDialog");
//*********Found**********
button.addActionListener(this);
textArea=new JTextArea("",3,10);
frame.getContentPane().add(textArea,BorderLayout.CENTER);
frame.getContentPane().add(button,BorderLayout.NORTH);
frame.setSize(400,300);
frame.setVisible(true);
}
public void actionPerformed(ActionEvent e)
{
final JDialog dia=new JDialog(frame,"login information");
JButton ok=new JButton("ok");
ok.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
textArea.setText("");
textArea.append("name:"+name.getText()+"\r\n");
textArea.append("passWord:"+new String(pass.getPassword())+"\r\n");
//*********Found**********
dia.setVisible(false);
}
});
name=new JTextField("",10);
pass=new JPasswordField("",10);
pass.setEchoChar('*');
textPanel=new JPanel();
textPanel.setLayout(new GridLayout(2,1,10,10));
textPanel.add(name);
textPanel.add(pass);
nameLabel=new JLabel("name");
passLabel=new JLabel("passWord");
labelPanel=new JPanel();
labelPanel.setLayout(new GridLayout(2,1,20,20));
labelPanel.add(nameLabel);
labelPanel.add(passLabel);
dia.getContentPane().add(labelPanel,BorderLayout.WEST);
dia.getContentPane().add(textPanel,BorderLayout.CENTER);
dia.getContentPane().add(ok,BorderLayout.SOUTH);
dia.setSize(200,130);
dia.setVisible(true);
}
public void windowClosing(WindowEvent event)
{
frame.setVisible(false);
System.exit(0);
}
public static void main(String args[])
{
Java_3 example=new Java_3();
//*********Found**********
example.initGUI();
}
}