demonstratingmenus.java

来自「The code to demonstrate simple GUI in Ja」· Java 代码 · 共 31 行

import javax.swing.*;
class DemonstratingMenus extends JFrame {
    private JMenuBar menuBar  = new JMenuBar();
    private JMenu fileMenu     = new JMenu("File");
    private JMenuItem neW, opeN, closE, savE, prinT;
    private JMenuItem saveCurrent, saveAs, saveAll;
    DemonstratingMenus(String title){
        super(title);
        setJMenuBar(menuBar);
        menuBar.add(fileMenu);
        fileMenu.setMnemonic('F');//
        fileMenu.add(neW   = new JMenuItem ("New"));
        fileMenu.add(opeN  = new JMenuItem ("Open"));
        opeN.setMnemonic('o');
        fileMenu.add(savE = new JMenu ("Save"));
        savE.add(saveCurrent = new JMenuItem ("Save Current"));
        savE.add(saveAs      = new JMenuItem ("Save As"));
        savE.add(saveAll     = new JMenuItem ("Save All"));
        fileMenu.add(savE);
        fileMenu.add(prinT = new JCheckBoxMenuItem ("Print"));
        fileMenu.addSeparator();
        fileMenu.add("Quit");
        setSize(400,400);
        show();
    }
    public static void main(String args[]){
        new DemonstratingMenus("Demonstrating Menus using Swing Components.");
    }
}