标签：case JRadioButtonMenuItem java swing break add learning JMenuItem new
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
public class SwingComponent {
JFrame f = new JFrame("test");
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(){
var botton = new JPanel();
botton.add(name);
botton.add(ok);
f.add(botton, BorderLayout.SOUTH);
var checkPannel = new JPanel();
checkPannel.add(colorChooser);
checkPannel.add(male);
checkPannel.add(female);
checkPannel.add(married);
bg.add(male);
bg.add(female);
var topLeft = Box.createVerticalBox();
var taJsp = new JScrollPane(ta);
topLeft.add(taJsp);
topLeft.add(checkPannel);
var top = Box.createHorizontalBox();
top.add(topLeft);
top.add(colorList);
f.add(top);
newItem.setAccelerator(KeyStroke.getKeyStroke('N', InputEvent.CTRL_DOWN_MASK));
newItem.addActionListener(e -> ta.append("用户单击了 新建 菜单"));
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 (IllegalAccessException ex) {
ex.printStackTrace();
} catch (InstantiationException ex) {
ex.printStackTrace();
} catch (UnsupportedLookAndFeelException ex) {
ex.printStackTrace();
} catch (ClassNotFoundException ex) {
ex.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 ClassNotFoundException, UnsupportedLookAndFeelException, InstantiationException, IllegalAccessException {
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();
}
}
output:
标签：case,JRadioButtonMenuItem,java,swing,break,add,learning,JMenuItem,new 来源： https://www.cnblogs.com/lianghong881018/p/11289061.html
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