在java中为什么总是子类调用超类构造函数？ 我想要内部流程

Question

I know how these stuff flow but I want to know when we make the object of child class it calls the parent class no arg constructor first. But i want to know the internal thing.

Answer 1

The parent class constructor needs to be called before the subclass constructor. This will ensure that if you call any methods on the parent class in your constructor, the parent class has already been set up correctly.