📄 hrabout.java
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package huaroad;import javax.microedition.lcdui.*;public class HRAbout extends Form implements CommandListener{ private static final Command COMMANDS[] = { new Command("返回", 4, 1) }; private Display display; private Backable winBack; public HRAbout() { super("帮助信息"); append("华容道 HuaRoad\n版本:v0.3.0\n" + "\u00A9Siemens Shanghai Mobile Communication Ltd."); for(int i = 0; i < COMMANDS.length; i++) addCommand(COMMANDS[i]); } public void activate(Display disp, Backable backable) { display = disp; winBack = backable; display.setCurrent(this); setCommandListener(this); } public void commandAction(Command command, Displayable displayable) { if(command == COMMANDS[0]) winBack.show(); }}
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