打字猴:1.70045897e+09
1700458970 protected void stop(){
1700458971
1700458972 System.out.println(“悍马H2停车……”);
1700458973
1700458974 }
1700458975
1700458976 //默认没有喇叭的
1700458977
1700458978 protected boolean isAlarm(){
1700458979
1700458980 return false;
1700458981
1700458982 }
1700458983
1700458984 }
1700458985
1700458986 H2型号的悍马设置isAlarm()的返回值为false,也就是关闭了喇叭功能。场景类代码如代码清单10-12所示。
1700458987
1700458988 代码清单10-12 扩展后的场景类
1700458989
1700458990 public class Client{
1700458991
1700458992 public static void main(String[]args)throws IOException{
1700458993
1700458994 System.out.println(”––-H1型号悍马––—”);
1700458995
1700458996 System.out.println(“H1型号的悍马是否需要喇叭声响?0-不需要1-需要”);
1700458997
1700458998 String type=(new BufferedReader(new InputStreamReader(System.in))).readLine();
1700458999
1700459000 HummerH1Model h1=new HummerH1Model();
1700459001
1700459002 if(type.equals(“0”)){
1700459003
1700459004 h1.setAlarm(false);
1700459005
1700459006 }
1700459007
1700459008 h1.run();
1700459009
1700459010 System.out.println(”\n––-H2型号悍马––—”);
1700459011
1700459012 HummerH2Model h2=new HummerH2Model();
1700459013
1700459014 h2.run();
1700459015
1700459016 }
1700459017
1700459018 }
1700459019
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