java - 在继承中，为子类创建一个对象时，是否也为它的父类(super class)创建了一个对象？

Question

1. 在继承中，当为子类创建对象时，是否也为其父类(super class)创建对象？
   我发现上述问题的答案是肯定的，它已创建。我对吗？

2. 基于正确的假设，我解决了这道题，我发现答案是4。我说得对吗？

3. long是原始类型还是包装类？

问题:当到达最后一个大括号时，有多少对象符合垃圾回收条件？

interface Animal {
   void makeNoise();
 }

class Horse implements Animal {
Long weight = 1200L;//here is Long a primitive variable or a wrapper class??
                    //If it is a wrapper class object, I think the answer to the   
                    // question would be 6  
public void makeNoise() {
System.out.println("whinny");
}
}

public class Icelandic extends Horse {

public void makeNoise() {
System.out.println("vinny");
}

public static void main(String[] args) {
Icelandic i1 = new Icelandic();
Icelandic i2 = new Icelandic();
Icelandic i3 = new Icelandic();

i3 = i1; i1 = i2; i2 = null; i3 = i1;
}
}

Answer 1

In inheritance, when an object is created for subclass, is an object also created for its superclass? I find the answer to the above question is yes, its created.Am I right?

不，创建子类对象时它不会创建父类(super class)对象。子类对象将通过从父类(super class)继承而具有父类(super class)功能主义者。创建子类对象时只会创建一个对象

Is long a primitive type or wrapper class??

long是原始数据类型，Long是对应的Wrapper类。

Question : When last brace is reached, how many objects are eligible for the garbage collection?

是的，会有6个对象，包括3个Long对象