jbtndemo.java

一个十分好的java基础学习的课件

import javax.swing.*;
import java.awt.*;

public class JBtnDemo extends JApplet
{
    Container pane;
    JButton btn1,btn2,btn3;
    JPanel p1,p2;
    JLabel label;

    public void init( )
    {   pane=getContentPane( );
        p1=new JPanel(new FlowLayout( ));
        p2=new JPanel(new FlowLayout( ));
        btn1=new JButton(new ImageIcon("start.gif"));
        btn2=new JButton(new ImageIcon("stop.gif"));
        btn3=new JButton(new ImageIcon("looping.gif"));
        label=new JLabel(new ImageIcon("star.gif"),SwingConstants.CENTER);

        pane.setBackground(Color.blue);
        p1.setBackground(Color.blue);
        p2.setBackground(Color.blue);

        btn1.setToolTipText("Display CD");
        btn2.setToolTipText("Merry Christmas!");
        btn3.setToolTipText("Happy New Year!");

       pane.add(p1,BorderLayout.NORTH);
       pane.add(p2,BorderLayout.SOUTH);
        p1.add(btn1);
        p1.add(btn2);
        p1.add(btn3);
        p2.add(label);
    }
}