构造函数在Java中调用继承的构造函数

Question

How would I go about doing this in java?

I need the constructor in my subclass to call the inherited constructor in my superclass. is there a special syntax that i need to use in order to do this?

I've used extends to inherit from the Person class. How would i go about using super()?

Here is my class:

public class Student extends Person
{
   protected int id;

   public Student()
   {
   // how do i call the inherited constructor here?
   }

}

Answer 1

super(arg1, arg2, etc);

在未显式调用super()的任何构造函数的开头都有一个隐式调用（不带参数）。

Answer 2

Exactly like that: super() . But I assume you need to call a method with arguments since there's an implicit call to super() . Add arguments, like this: super(arg0, arg1, arg2, etc); .