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Article #18864

Re: ���ҿ���

#18864
From: �ż��ˣ��ؼҰ�
Date: Wed, 21 Jan 2004 09:34
65 lines
2634 bytes
�����������дCanvas
�õ�Ӧ����������ϱߵ��Ǹ�canvas����
awt���Ǹ�canvas

�� �� Shinjia.bbs@freecity.cnzju.net (��) �Ĵ������ᵽ: ��
: ��  ��: ���ҿ���
: ����վ: Ʈ��ˮ�Ƽ� (Wed Jan 21 15:05:21 2004)
: ת��վ: NanKai!news.happynet.org!news.ccie.net.cn!Freecity
: 
: import java.applet.Applet;
: import java.awt.*;
: import java.awt.event.*;
: public class Canvas extends Applet implements MouseListener{
:     graphicsCanvas gc;
:     Button button1;
:     public void init()
:     {
:         gc=new graphicsCanvas();
:         gc.setSize(100,100);
:         add(gc);
:         addMouseListener(this);
:     }
:     public void mouseClicked(MouseEvent e)
:     {
:         for(int loop_index=0;loop_index<150;loop_index++)
:         {
:             gc.setLocation(loop_index,0);
:         }
:     }
:     public void mousePressed(MouseEvent e)
:     {
:         
:     }
:     public void mouseReleased(MouseEvent e)
:     {
:         
:     }
:     public void mouseEntered(MouseEvent e)
:     {
:         
:     }
:     public void mouseExited(MouseEvent e)
:     {
:         
:     }
: }
: class graphicsCanvas extends java.awt.Canvas
: {                            ~~~~~~~~~~~~~~~~~���ij�Canvas��û��Ч����,why? 
:     public void paint(Graphics q)
:     {
:         q.drawOval(10,50,40,40);
:         q.drawLine(10,50,50,90);
:         q.drawLine(50,50,10,90);
:     }
: }
: --
: 
: �� ��Դ:��Ʈ��ˮ�Ƽ� freecity.cnzju.net��[FROM: Shinjia]


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�� ��Դ:���Ұ��Ͽ�վ bbs.nankai.edu.cn��[FROM: 61.181.5.43] 
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From: mini.bbs@bbs.nankai.edu.cn (�ż��ˣ��ؼҰ�)
Newsgroups: cn.bbs.comp.lang.java
Subject: Re: ���ҿ���
Date: 21 Jan 2004 09:34:33 GMT
Organization: �Ұ��Ͽ�վ
Message-ID: <4ALNj0$ASR@bbs.nankai.edu.cn>
X-Filename: Java/M.1074677616.A
Lines: 65