?? untitled1.java
字號:
package test;
import java.awt.*;
import java.awt.event.*;
import javax.swing.JOptionPane;
/**
* <p>Title: </p>
*
* <p>Description: </p>
*
* <p>Copyright: Copyright (c) 2006</p>
*
* <p>Company: </p>
*
* @author not attributable
* @version 1.0
*/
public class Untitled1 {
public static void main(String args[])
{
final Frame frmFrame=new Frame();
Panel pnlPanel=new Panel();
Label lblUsename=new Label("用戶名");
Label lblPassword=new Label("密碼");
final TextField txtUsename=new TextField("管理員");
final TextField txtPassword=new TextField(" ",8);
txtUsename.setEditable(false);
txtPassword.setEchoChar('*');
Button btnButton1=new Button("登陸");
Button btnButton2=new Button("其他用戶登錄");
Button btnButton3=new Button("關閉");
btnButton1.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
if((txtPassword.getText()).length()==0)
{
JOptionPane.showMessageDialog(frmFrame,"密碼不能為空");
return;
}
txtPassword.setColumns(16);
System.out.println(txtUsename.getText()+"用戶的密碼:"+txtPassword.getText());
}
});
btnButton2.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
txtUsename.setEditable(true);
}
});
btnButton3.addActionListener(new ActionListener()
{
public void actionPerformed(ActionEvent e)
{
System.exit(0);
}
});
pnlPanel.add(lblUsename);
pnlPanel.add(txtUsename);
pnlPanel.add(lblPassword);
pnlPanel.add(txtPassword);
pnlPanel.add(btnButton1);
pnlPanel.add(btnButton2);
pnlPanel.add(btnButton3);
frmFrame.add(pnlPanel);
frmFrame.setTitle("請輸入密碼!!");
frmFrame.setBackground(Color.white);
frmFrame.setLocation(250,250);
frmFrame.pack();
frmFrame.show();
}
}
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