1 package test; 2  3 import java.awt.Container; 4 import java.awt.GridLayout; 5 import java.awt.event.WindowAdapter; 6 import java.awt.event.WindowEvent; 7 import java.io.File; 8 import java.util.Vector; 9 10 import javax.swing.BorderFactory;11 import javax.swing.ComboBoxEditor;12 import javax.swing.ImageIcon;13 import javax.swing.JCheckBox;14 import javax.swing.JComboBox;15 import javax.swing.JFrame;16 import javax.swing.JLabel;17 import javax.swing.JMenu;18 import javax.swing.JMenuBar;19 import javax.swing.JPanel;20 import javax.swing.JRadioButton;21 import javax.swing.JScrollPane;22 import javax.swing.JTextArea;23 public class test {24     public static void main(String[] args) {25         JFrame f=new JFrame("Welcome!");26         JTextArea text=new JTextArea();27         text.setEditable(true);28         f.getContentPane().add(new JScrollPane(text));29         JMenu menuFile=new JMenu("文件");30         menuFile.setIcon(new ImageIcon("d:"+File.separator+"Note.png"));31         JMenuBar menuBar=new JMenuBar();32         menuBar.add(menuFile);33         f.addWindowListener(new WindowAdapter(){34             public void windowClosing(WindowEvent arg0){35                 System.exit(1);36             }37         });38         f.setJMenuBar(menuBar);39         f.setVisible(true);40         f.setSize(300,100);41         f.setLocation(300,200);42         43     }44 45 46 }