Java抽象类详解：从基础概念到实战应用，轻松掌握面向对象编程核心
publicabstractclassAnimal{//类体内容}publicabstractclassAnimal{protectedStringname;publicAnimal(Stringname){this.name=name;}}p...
publicabstractclassAnimal{//类体内容}publicabstractclassAnimal{protectedStringname;publicAnimal(Stringname){this.name=name;}}p...