继承中的对象关系 [英] Object relationship in inheritence
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问题描述
我有一个A类.假设B类扩展了A.
当我创建B的实例时..创建两个对象,一个为A,另一个为B .....这两个对象如何关联,指定此A对象仅与该B对象相关....
i am having a class A .suppose the class B extends A .
when i am creating the instance of B ..two objects are created one for A and other for B.......how this two objects are related specifying this A object is related to only this B object....
class A{}
class B extends A{
public static void main(String[] args){
B b = new B();
}
}
在这里,为超类A和子类B创建了两个对象...
与此B相关的特定A对象的方式.......
here two objects are created one for the super class A and for the subclass B...
how the specific A object related to this b.......
推荐答案
都调用了两个构造函数,但是仅创建了一个对象,并且该对象的类型B.阅读OOP的基础知识.
Both constructors are called, but only one object is being created and that is of type B. Read the fundamentals of OOP.
请参见此处 [ ^ ]更多详细信息.
See here[^] for more details.
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