我有以下类(class)Hello.javapackagespeak.hello;importjava.util.Map;importspeak.hi.CustomMap;importspeak.hi.Hi;publicclassHello{privateHihi;Hello(Hihi){this.hi=hi;}publicStringsayHello(){return"Hello";}publicStringsayHi(){returnhi.sayHi();}publicMapgetMap(){returnhi.getMap();}publicvoidclearMap(){hi.ge