toolbardemo.java

这是java 2应用开发指南这本书上所有例子的源代码

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class ToolBarDemo extends JFrame
{
  private JPanel contentPane;
  private JToolBar jToolBar = new JToolBar();
  private JButton jButton1 = new JButton();
  private JButton jButton2 = new JButton();
  private JButton jButton3 = new JButton();
  private ImageIcon image1;
  private ImageIcon image2;
  private ImageIcon image3;
  private BorderLayout borderLayout1 = new BorderLayout();

  public ToolBarDemo(String strTitle){
    super(strTitle);
    image1 = new ImageIcon(ToolBarDemo.class.getResource("openFile.gif"));
    image2 = new ImageIcon(ToolBarDemo.class.getResource("closeFile.gif"));
    image3 = new ImageIcon(ToolBarDemo.class.getResource("help.gif"));
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(borderLayout1);
    this.setSize(new Dimension(400, 300));
    jButton1.setIcon(image1);
    jButton1.setToolTipText("Open File");
    jButton2.setIcon(image2);
    jButton2.setToolTipText("Close File");
    jButton3.setIcon(image3);
    jButton3.setToolTipText("Help");
    jToolBar.add(jButton1);
    jToolBar.add(jButton2);
    jToolBar.add(jButton3);
    contentPane.add(jToolBar, BorderLayout.NORTH);
    setSize(200,100);
  }
  public static void main( String[] args ){
    ToolBarDemo f=new ToolBarDemo("这是个使用工具条的例子");
    f.addWindowListener(new WindowAdapter(){
      public void windowClosing(WindowEvent e){
        System.exit(0);
        }
    });
    f.pack();
    f.show();
  }
}