哪位解释一下这个代码的调用顺序解决思路

哪位解释一下这个代码的调用顺序

Java code

class Animal{//7
    Animal(){
        System.out.println("Class Animal");
    }
}
class Fish extends Animal{//8
    Fish(){
        System.out.println("Class Fish");
    }
}
class GoldFish extends Fish{//9
    GoldFish(){
        System.out.println("Class GoldFish");
    }
}
public class TestInheritanceConstructor extends Animal{//1
    private GoldFish goldfish = new GoldFish();//2
    
    public TestInheritanceConstructor(){ //3
        System.out.println("TestInheritanceConstructor");//4
    }
    
    public static void main(String[] args){//5
        new TestInheritanceConstructor();//6
    }
}

//这个代码从 哪里开始的。。之后 怎么调用的，，，哪位给 解释一下，，可以直接说代码后面的 数字就行。。。谢谢，，，

------解决方案--------------------
可以把你的代码改一下会看的更加清楚如：
public class testConstructor extends Animal {
private GoldFish goldfish = new GoldFish("1");// 2

public testConstructor() { // 3
super("2");
System.out.println("TestInheritanceConstructor");// 4
}

public static void main(String[] args) {// 5
new testConstructor();// 6
// GoldFish goldfish = new GoldFish();// 2
}

}

class Animal {// 7
Animal(String name) {
System.out.println("Class Animal:" + name);
}
}

class Fish extends Animal {// 8
Fish(String name) {
super(name);
System.out.println("Class Fish:" + name);
}
}

class GoldFish extends Fish {// 9
GoldFish(String name) {
super(name);
System.out.println("Class GoldFish:" + name);
}
}
结果是：
Class Animal:2
Class Animal:1
Class Fish:1
Class GoldFish:1
TestInheritanceConstructor