Java JToolBar_1

package com.han;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JToolBar;

public class JToolBar_1 extends JFrame {

	/**
	 * 
	 */
	private static final long serialVersionUID = -5613166990529085530L;

	static Dimension dimension;
	
	public JToolBar_1() {
		// TODO Auto-generated constructor stub
		JToolBar toolBar = new JToolBar("工具栏");
		toolBar.setFloatable(false);
		// toolBar.setFloatable(true);
		getContentPane().add(toolBar, BorderLayout.NORTH);
		JButton newButton = new JButton("新建");
		toolBar.add(newButton);
		newButton.addActionListener(new newButtonListener());
		toolBar.addSeparator();
		
		JButton saveButton = new JButton("保存");
		toolBar.add(saveButton);
		saveButton.addActionListener(new saveButtonListener());
		toolBar.addSeparator(new Dimension(20, 0));
		
		JButton exitButton = new JButton("退出");
		toolBar.add(exitButton);
		exitButton.addActionListener(new exitButtonListener());
		
		dimension = toolBar.getPreferredSize();
	}

	private class newButtonListener implements ActionListener {

		@Override
		public void actionPerformed(ActionEvent e) {
			// TODO Auto-generated method stub
			
		}
		
	}
	
	private class saveButtonListener implements ActionListener {

		@Override
		public void actionPerformed(ActionEvent e) {
			// TODO Auto-generated method stub
			
		}
		
	}
	
	private class exitButtonListener implements ActionListener {

		@Override
		public void actionPerformed(ActionEvent e) {
			// TODO Auto-generated method stub
			
		}
		
	}
	
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		JToolBar_1 frame = new JToolBar_1();
		frame.setTitle("使用工具栏");
		frame.setVisible(true);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		Rectangle rectangle = new Rectangle(100, 100, dimension.width + 300,
				dimension.width + 100);
		frame.setBounds(rectangle);
	}

}