helpdialog.java

windows记事本功能的软件

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

class HelpDialog extends Dialog
{
   Label lab1,lab2,lab3,lab4,lab5,lab6,lab7;
   Mypicture mypic;
   Box basebox ,boxV;
   HelpDialog(Frame f,String s,boolean b)
	{
	   super(f,s,b);
	    mypic=new Mypicture("关于");
	   setBounds(200,200,290,350);
	   setLayout(new BorderLayout());
	   add(mypic,BorderLayout.NORTH);
	   String osname=System.getProperty("os.name","not specified");
	   lab1=new Label(osname);
	   String javaname=System.getProperty("java.version","not specified");
	   lab2=new Label("JavaVersion:   "+javaname);
	   String memory=System.getProperty("user.name","not specified");
	   lab3=new Label("当前用户: "+memory);
	   String osarch=System.getProperty("os.arch","not specified");
	   lab4=new Label("CPU Architure:   "+osarch);
	   String javavendor=System.getProperty("java.vendor");
	   lab6=new Label("Java Vendor:   "+javavendor);
	   String cpu=System.getProperty("sun.cpu.isalist");
	   lab7=new Label("CPU:  "+cpu);
	   lab5=new Label("Version 1.01 Create-by YJ.W");
	   boxV=Box.createVerticalBox();
	   boxV.add(lab1);
	   boxV.add(Box.createVerticalStrut(2));
	   boxV.add(lab3);
	   boxV.add(Box.createVerticalStrut(2));
       boxV.add(lab4);
	   boxV.add(Box.createVerticalStrut(2));
       boxV.add(lab5);
	   boxV.add(Box.createVerticalStrut(2));
	   boxV.add(lab6);
	   boxV.add(Box.createVerticalStrut(2));
	   boxV.add(lab7);
       boxV.add(Box.createVerticalStrut(2));
	   boxV.add(lab2);
	   boxV.add(Box.createVerticalStrut(2));
	   boxV.add(lab5);
	   Box basebox=Box.createHorizontalBox();
	   basebox.add(boxV); 
	   add(basebox,BorderLayout.CENTER);
	   setVisible(false);
	   validate();
	   addWindowListener(new WindowAdapter()
				{	
						public void windowClosing(WindowEvent e)
					{
						setVisible(false);
					}
				});
    }
}

class Mypicture extends Canvas
{
	Image img;
	Toolkit tool;
	static int width,height;
	Mypicture(String s)
	{
	  setSize(150,170);
      tool=getToolkit();
	  img=tool.getImage("logo.jpg");
	}
	public void paint(Graphics g)
	{
		g.drawImage(img,0,0,img.getWidth(this),img.getHeight(this),this);
	}
	 public static void main(String args[])
	 {
	 	Mypicture mypic=new Mypicture("关于");
	 }
}