hisframe.java

孙鑫讲解的java教程ppt 有益于java的学习

package lesson8;

import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class HisFrame
{
  public static void main(String[] args)
  {
    final Frame f=new Frame("http://www.mybole.com.cn");
    f.setSize(600,400);
    f.setLocation(100,100);
    //TextField tf=new TextField(20);
    //f.add(tf,"North");
    final TextArea tf=new TextArea();
    f.add(tf);
    f.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent e) {
          System.exit(0);
        }
      });
    MenuBar mb=new MenuBar();
    Menu m1=new Menu("File");
    Menu m2=new Menu("Edit");
    MenuItem mi1=new MenuItem("New");
    MenuItem mi2=new MenuItem("Open");
    mi2.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            FileDialog fd=new FileDialog(f,"Weixin Open File Dialog",
                                         FileDialog.LOAD);
            fd.show();
            String strFile=fd.getDirectory()+fd.getFile();
            if(strFile!=null)
            {
              try {
                FileInputStream fis=new FileInputStream(strFile);
                byte[] buf=new byte[10*1024];
                int len=fis.read(buf);
                tf.append(new String(buf,0,len));
                fis.close();
              }
              catch (Exception ex) {
                ex.printStackTrace();
              }
            }
          }
        });
    MenuItem mi3=new MenuItem("Save");
    MenuItem mi4=new MenuItem("Exit");
    mi4.addActionListener(new ActionListener() {
          public void actionPerformed(ActionEvent e) {
            System.exit(0);
          }
        });
    MenuItem mi5=new MenuItem("Copy");
    MenuItem mi6=new MenuItem("Paste");

    m1.add(mi1);
    m1.add(mi2);
    m1.add(mi3);
    m1.add(mi4);
    m2.add(mi5);
    m2.add(mi6);
    mb.add(m1);
    mb.add(m2);

    f.setMenuBar(mb);
    f.show();
  }
}