第十三周课程总结

时间：2019-11-22 23:44:23 阅读：111 评论：0 收藏：0 [点我收藏+]

标签：main nic bar 菜单 editable ack tab 不能 alt

一、构建菜单项

package shisanzhou;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.KeyStroke;

public class text {
    public static void main(String[] args) {
        JFrame frame=new JFrame("Welcome To MLDN");
        JTextArea text=new JTextArea();
        text.setEditable(true);
        frame.getContentPane().add(new JScrollPane(text));
        JMenu menuFile=new JMenu("文件");
        menuFile.setIcon(new ImageIcon("d:"+File.separator+"icons"+File.separator+"file.gif"));
        JMenuBar menuBar=new JMenuBar();
        JMenuItem newItem=new JMenuItem("新建",new ImageIcon("d:"+File.separator+"icons"+File.separator+"new.gif"));
        JMenuItem openItem=new JMenuItem("打开",new ImageIcon("d:"+File.separator+"icons"+File.separator+"open.gif"));
        JMenuItem closeItem=new JMenuItem("关闭",new ImageIcon("d:"+File.separator+"icons"+File.separator+"close.gif"));
        JMenuItem exitItem=new JMenuItem("退出",new ImageIcon("d:"+File.separator+"icons"+File.separator+"exit.gif"));
        newItem.setMnemonic('N');
        openItem.setMnemonic('O');
        closeItem.setMnemonic('C');
        exitItem.setMnemonic('E');
        newItem.setAccelerator(KeyStroke.getKeyStroke('N',java.awt.Event.CTRL_MASK));
        openItem.setAccelerator(KeyStroke.getKeyStroke('O',java.awt.Event.CTRL_MASK));
        closeItem.setAccelerator(KeyStroke.getKeyStroke('C',java.awt.Event.ALT_MASK));
        exitItem.setAccelerator(KeyStroke.getKeyStroke('E',java.awt.Event.ALT_MASK));
        menuFile.add(newItem);
        menuFile.add(openItem);
        menuFile.add(closeItem);
        menuFile.addSeparator();
        menuFile.add(exitItem);
        menuBar.add(menuFile);
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent arg0) {
                System.exit(1);
            }});
        frame.setJMenuBar(menuBar);
        frame.setVisible(true);
        frame.setSize(300,180);
        frame.setLocation(300, 200);
    }

}