progressbarupdate.java

来自「java技术内幕源代码,配合书籍看有事半功倍的效果」· Java 代码 · 共 38 行

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

/*
<APPLET
    CODE = progressbarupdate.class
    WIDTH = 400
    HEIGHT = 200 >
</APPLET>
*/

public class progressbarupdate extends JApplet 
{
    JProgressBar jprogressbar = new JProgressBar();
    JButton jbutton = new JButton("Increment the progress bar");

    public void init() 
    {
        Container contentPane = getContentPane();

        contentPane.setLayout(new FlowLayout());

        contentPane.add(jprogressbar);
        contentPane.add(jbutton);

        jprogressbar.setStringPainted(true);

        jbutton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) 
            {
                jprogressbar.setValue(jprogressbar.getValue() + 10);
            }
        });
    }
}