import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class SwingComponent
{
	JFrame f = new JFrame("测试");
	Icon okIcon = new ImageIcon("ico/ok.png");
	JButton ok = new JButton("确认" , okIcon);
	JRadioButton male = new JRadioButton("男" , true);
	JRadioButton female = new JRadioButton("女" , false);
	ButtonGroup bg = new ButtonGroup();
	JCheckBox married = new JCheckBox("是否已婚？" , false);
	String[] colors = new String[]{"红色" , "绿色"  , "蓝色"};
	JComboBox<String> colorChooser = new JComboBox<>(colors);
	JList<String> colorList = new JList<>(colors);
	JTextArea ta = new JTextArea(8, 20);
	JTextField name = new JTextField(40);
	JMenuBar mb = new JMenuBar();
	JMenu file = new JMenu("文件");
	JMenu edit = new JMenu("编辑");
	Icon newIcon = new ImageIcon("ico/new.png");
	JMenuItem newItem = new JMenuItem("新建" , newIcon);
	Icon saveIcon = new ImageIcon("ico/save.png");
	JMenuItem saveItem = new JMenuItem("保存" , saveIcon);
	Icon exitIcon = new ImageIcon("ico/exit.png");
	JMenuItem exitItem = new JMenuItem("退出" , exitIcon);
	JCheckBoxMenuItem autoWrap = new JCheckBoxMenuItem("自动换行");
	JMenuItem copyItem = new JMenuItem("复制"
		, new ImageIcon("ico/copy.png"));
	JMenuItem pasteItem = new JMenuItem("粘贴"
		, new ImageIcon("ico/paste.png"));
	JMenu format = new JMenu("格式");
	JMenuItem commentItem = new JMenuItem("注释");
	JMenuItem cancelItem = new JMenuItem("取消注释");
	JPopupMenu pop = new JPopupMenu();
	ButtonGroup flavorGroup = new ButtonGroup();
	JRadioButtonMenuItem metalItem = new JRadioButtonMenuItem("Metal风格" , true);
	JRadioButtonMenuItem nimbusItem = new JRadioButtonMenuItem("Nimbus风格");
	JRadioButtonMenuItem windowsItem = new JRadioButtonMenuItem("Windows风格");
	JRadioButtonMenuItem classicItem = new JRadioButtonMenuItem("Windows经典风格");
	JRadioButtonMenuItem motifItem = new JRadioButtonMenuItem("Motif风格");
	public void init()
	{
		JPanel bottom = new JPanel();
		bottom.add(name);
		bottom.add(ok);
		f.add(bottom , BorderLayout.SOUTH);
		JPanel checkPanel = new JPanel();
		checkPanel.add(colorChooser);
		bg.add(male);
		bg.add(female);
		checkPanel.add(male);
		checkPanel.add(female);
		checkPanel.add(married);
		Box topLeft = Box.createVerticalBox();
		JScrollPane taJsp = new JScrollPane(ta);     
		topLeft.add(taJsp);
		topLeft.add(checkPanel);
		Box top = Box.createHorizontalBox();
		top.add(topLeft);
		top.add(colorList);
		f.add(top);
		newItem.setAccelerator(KeyStroke.getKeyStroke('N'
			, InputEvent.CTRL_MASK));    
		newItem.addActionListener(e -> ta.append("用户单击了“新建”菜单\n"));
		file.add(newItem);
		file.add(saveItem);
		file.add(exitItem);
		edit.add(autoWrap);
		edit.addSeparator();
		edit.add(copyItem);
		edit.add(pasteItem);
		commentItem.setToolTipText("将程序代码注释起来！");
		format.add(commentItem);
		format.add(cancelItem);
		edit.add(new JMenuItem("-"));
		edit.add(format);
		mb.add(file);
		mb.add(edit);
		f.setJMenuBar(mb);
		flavorGroup.add(metalItem);
		flavorGroup.add(nimbusItem);
		flavorGroup.add(windowsItem);
		flavorGroup.add(classicItem);
		flavorGroup.add(motifItem);
		pop.add(metalItem);
		pop.add(nimbusItem);
		pop.add(windowsItem);
		pop.add(classicItem);
		pop.add(motifItem);
		ActionListener flavorListener = e -> {
			try
			{
				switch(e.getActionCommand())
				{
					case "Metal风格":
						changeFlavor(1);
						break;
					case "Nimbus风格":
						changeFlavor(2);
						break;
					case "Windows风格":
						changeFlavor(3);
						break;
					case "Windows经典风格":
						changeFlavor(4);
						break;
					case "Motif风格":
						changeFlavor(5);
						break;
				}
			}
			catch (Exception ee)
			{
				ee.printStackTrace();
			}
		};		
		metalItem.addActionListener(flavorListener);
		nimbusItem.addActionListener(flavorListener);
		windowsItem.addActionListener(flavorListener);
		classicItem.addActionListener(flavorListener);
		motifItem.addActionListener(flavorListener);
		ta.setComponentPopupMenu(pop); 
		f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		f.pack();
		f.setVisible(true);
	}
	private void changeFlavor(int flavor)throws Exception
	{
		switch (flavor)
		{
			case 1:
				UIManager.setLookAndFeel(
				"javax.swing.plaf.metal.MetalLookAndFeel");
				break;
			case 2:
				UIManager.setLookAndFeel(
				"javax.swing.plaf.nimbus.NimbusLookAndFeel");
				break;
			case 3:
				UIManager.setLookAndFeel(
				"com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
				break;
			case 4:
				UIManager.setLookAndFeel(
				"com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel");
				break;
			case 5:
				UIManager.setLookAndFeel(
				"com.sun.java.swing.plaf.motif.MotifLookAndFeel");
				break;
		}
		SwingUtilities.updateComponentTreeUI(f.getContentPane());  
		SwingUtilities.updateComponentTreeUI(mb);
		SwingUtilities.updateComponentTreeUI(pop);
	}
	public static void main(String[] args)
	{
		new SwingComponent().init();
	}
}