import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class LX9_9 extends JFrame implements ActionListener{
JButton button1,button2,button3;
JToolBar toolBar;
JTextArea textArea;
JScrollPane scrollPane;
JPanel panel;
public LX9_9(){
super("带有工具栏按钮的窗口");
addWindowListener(new WindowAdapter(){
public void windowClosing(WindowEvent e){
System.exit(0);
}
});
button1=new JButton(new
ImageIcon("image/PreviousArrow.gif"));
button2=new JButton(new ImageIcon("image/go.GIF"));
button3=new JButton(new ImageIcon("image/NextArrow.gif"));
button1.addActionListener(this);
button2.addActionListener(this);
button3.addActionListener(this);
toolBar=new JToolBar();
toolBar.add(button1);
toolBar.add(button2);
toolBar.add(button3);
textArea=new JTextArea(6,30);
scrollPane=new JScrollPane(textArea);
panel=new JPanel();
setContentPane(panel);
panel.setLayout(new BorderLayout());
panel.setPreferredSize(new Dimension(300,150));
panel.add(toolBar,BorderLayout.NORTH);
panel.add(scrollPane,BorderLayout.CENTER);
pack();
show () ;
}
public void actionPerformed(ActionEvent e){
String s="";