?? rect.java
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package statistics;import java.awt.*;import java.awt.event.*;import java.applet.*;public class rect extends Applet { boolean isStandalone = false; Color color1=new Color(255,0,0); Color color2=new Color(0,255,0); Color color3=new Color(0,0,255); public void paint(Graphics g){ g.drawLine(20,50,20,250); g.drawLine(20,50,200,50); g.setColor(color1); g.drawString("條形統計圖",40,20); g.fillRect(20,50,40,150); g.setColor(color2); g.fillRect(80,50,40,100); g.setColor(color3); g.fillRect(140,50,40,130); } /**Get a parameter value*/ public String getParameter(String key, String def) { return isStandalone ? System.getProperty(key, def) : (getParameter(key) != null ? getParameter(key) : def); } /**Construct the applet*/ public rect() { } /**Initialize the applet*/ public void init() { try { jbInit(); } catch(Exception e) { e.printStackTrace(); } } /**Component initialization*/ private void jbInit() throws Exception { } /**Get Applet information*/ public String getAppletInfo() { return "Applet Information"; } /**Get parameter info*/ public String[][] getParameterInfo() { return null; }}?? 快捷鍵說明
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