inheritance

英文: Method for all objects that extend the same class? 问题 假设我有3个类，它们都扩展自相同的类... public class Foo { p...

英文: How to check between two subclasses which one has been called when creating an instance? 问题 我正在尝...

英文: Returning a subclass as type interface 问题 我遇到了一个关于我正在为作业编写的类的问题。我有一个接口，Person，它有3个抽象方法：getID、get...

英文: How can I make a protected static field public in sub class? 问题 我有这段代码： class A { protected stat...

英文: How to define a class that features a generic parameter which extends a class that features a ge...

英文: How to retrieve ID elements from ArrayList 问题 以下是翻译好的内容： 能帮我检索一个ArrayList元素吗？前提条件如下。 Product类有三个...

英文: Is there a way to store a object immediately to a another classes list? 问题 标题，我在考虑像这样的东西 Shapes ...

英文: Is using composition to leverage inheritance from Java abstract collections classes bad practice...

英文: Hibernate: OneToOne: two fields of the same type 问题 @Entity @SequenceGenerator(name="PRIVATE...

英文: How is a child object constructed in Java? 问题 在Java中，子对象是如何构造的？ 我刚开始学习继承，以下几点对我来说不太清楚： 子对象仅取决于子类...