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·¢ÐÅÈË: jtiger (jim), ÐÅÇø: Java 
±ê  Ìâ: ÔÚJAVA appletÖеĶ¯»­(¶þ) 
ÈÕ  ÆÚ: Tue Mar 12 15:42:31 1996 
 
         
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                Ê£ÏµľÍÊǽ«Ã¿Ò»Ö¡Í¼Ïó»æ³ö¡£ÔÚÉÏÀýÖе÷ÓÃÁËappletµÄrepaint() 
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                public void paint(Graphics g) { 
                        g.setColor(Color.black); 
                        g.drawString("Frame " + frame, 0, 30); 
                } 
 
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                public void paint(Graphics g) { 
                        Dimension d = size(); 
                        int h = d.height / 2; 
                        for (int x = 0 ; x < d.width; x++) { 
                                int y1 = (int)((1.0 + Math.sin((x - frame) *  
0.05)) * h); 
                                int y2 = (int)((1.0 + math.sin((x + frame) *  
0.05)) * h); 
                                g.DrawLine(x, y1, x, y2); 
                        } 
                } 
 
 
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        ÖØÔØupdate()£ 
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                public void paint(Graphics g) { 
                        update(g); 
                } 
 
                public void update(Graphics g) { 
                        Color bg = getBackground(); 
                        Dimension d = size(); 
                        int h = d.height / 2; 
                        for (int x = 0; x < d.width; x++) { 
                                int y1 = (int)((1.0 + Math.sin((x - frame) *  
0.05)) * h); 
                                int y2 = (int)((1.0 + Math.sin((x + frame) *  
0.05)) * h); 
 
                                if (y1 > y2) { 
                                        int t = y1; 
                                        y1 = y2; 
                                        y2 = t; 
                                } 
                                g.setColor(bg); 
                                g.drawLine(x, 0, x, y1); 
                                g.drawLine(x, y2, x, d.height); 
                                g.setColor(Color.black); 
                                g.drawLine(x, y1, x, y2); 
                        } 
                } 
 
 
--±àÒë×Ô<JAVA World> 
-- 
Nothing is right, 
        nothing is wrong. 
 

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