toolbarexam.java

Java程序设计实用教程源代码 本书源代码按章分别放置在不同的文件夹中,所有程序均在JDK1.6环境下编译运行正常,除了第13章需要建立ODBC数据源之外,其他程序只要有Java运行环境即可直接运行

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class toolBarExam extends JFrame{
  private JPanel jpanel;
  private JToolBar jToolBar = new JToolBar();
  private JButton jbtn1 = new JButton();
  private JButton jbtn2 = new JButton();
  private JButton jbtn3 = new JButton();
  private BorderLayout borderLayout1 = new BorderLayout();
  public toolBarExam(String strTitle){
    super(strTitle);
    ImageIcon icon1 = new ImageIcon("image//open.gif");
    ImageIcon icon2 = new ImageIcon("image//save.gif");
    ImageIcon icon3 = new ImageIcon("image//help.gif");
    jpanel = (JPanel) this.getContentPane();
    jpanel.setLayout(borderLayout1);
    this.setSize(new Dimension(400, 300));
    jbtn1.setIcon(icon1);
    jbtn1.setToolTipText("打开文件");
    jbtn2.setIcon(icon2);
    jbtn2.setToolTipText("保存文件");
    jbtn3.setIcon(icon3);
    jbtn3.setToolTipText("帮助");
    jToolBar.add(jbtn1);
    jToolBar.add(jbtn2);
    jToolBar.add(jbtn3);
    jpanel.add(jToolBar, BorderLayout.NORTH);
    setSize(200,100);
  }
  public static void main(String[] args) {
    toolBarExam jframe = new toolBarExam("工具条演示");
    jframe.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    jframe.setVisible(true);
  }
}