用JAVA写的简易QQ登陆界面（AWT组件的综合应用）

import javax.swing.*;

import java.awt.*;

import javax.swing.border.*;

import java.awt.event.*;

public class QQ

{

public static void main(String args[])

{

WindowBox win=new WindowBox("QQ2011");

// Draw d=new Draw();

}

}

class WindowBox extends Frame implements ActionListener

{

Box baseBox,boxv1,boxv2,boxv3;

Button b1,b2;

TextField text1,text2;

WindowBox(String s)

{

super(s);

boxv1=Box.createVerticalBox();

boxv1.add(new Label("账号"));

boxv1.add(Box.createVerticalStrut(10));

boxv1.add(new Label("密码"));

boxv1.add(Box.createVerticalStrut(10));

//boxv1.add(new Label(""));

b1=new Button("登录");

b1.addActionListener(this);

b2=new Button("退出");

b2.addActionListener(this);

boxv3=Box.createHorizontalBox();

boxv3.add(b1);

boxv3.add(Box.createHorizontalStrut(10));

boxv3.add(b2);

text1=new TextField(10);

text2=new TextField(10);

text2.setEchoChar('*');

boxv2=Box.createVerticalBox();

boxv2.add(text1);

boxv2.add(Box.createVerticalStrut(10));

boxv2.add(text2);

boxv2.add(Box.createVerticalStrut(10));

boxv2.add(boxv3);

baseBox=Box.createHorizontalBox();

baseBox.add(boxv1);

baseBox.add(Box.createHorizontalStrut(10));

baseBox.add(boxv2);

setLayout(new FlowLayout());

add(baseBox);

setBounds(600,125,400,260);

setVisible(true);

setResizable(true);

ImageIcon icon=new ImageIcon("qq.jpg");

setIconImage(icon.getImage());

setBackground(Color.pink);

}

/*class D extends JFrame

public void Draw()

{

MyPanel mp=null;

mp=new MyPanel();

this.add(mp);

this.setSize(400,300);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.setVisible(true);

}

class MyPanel extends JPanel

{

public void paint(Graphics g)

{

super.paint(g);

// g.setColor(Color.blue);

// g.fillRect(10,10, 40,60);

// g.setColor(Color.red);

// g.fillRect(80,80, 40, 60);

// System.out.println("paint被调用");

// g.drawOval(10,10,30,30);

Image im=Toolkit.getDefaultToolkit().getImage

(Panel.class.getResource("\\aa.jpg"));

g.drawImage(im,90,90,200,150,this);

}

}*/

public void actionPerformed(ActionEvent e)

{

/*if(text1.getText().equals("123456")&&text2.getText().equals("123456"))

{

JOptionPane.showMessageDialog(null,"恭喜，登陆成功");

}

else

{

JOptionPane.showMessageDialog(null,"登陆失败，密码或账号错误，请重新登录");

text1.setText(null);

text2.setText(null);

}*/

if(e.getSource()==b1)

{

if(text1.getText().equals("123456")&&text2.getText().equals("123456"))

{

JOptionPane.showMessageDialog(null,"恭喜，登陆成功");

}

else

{

JOptionPane.showMessageDialog(null,"登陆失败，密码或账号错误，请重新登录");

text1.setText(null);

text2.setText(null);

}

}

if(e.getSource()==b2)

{

System.exit(0);

}

}

}