我在Java中创建了以下继承难题:Animal.javapublicclassAnimal{privateStringsound;publicvoidroar(){System.out.println(sound);}publicvoidsetSound(Stringsound){this.sound=sound;}}Tiger.javapublicclassTigerextendsAnimal{publicStringsound;publicTiger(){sound="ROAR";}}Jungle.javapublicclassJungle{publicstaticvoidmain