With this example we are going to demonstrate how to inherit constructor calls from a super class to a sub class. In short, to inherit constructor calls from a super class to a sub class:
- We have created a class
A, with a constructor and a classBthat extendsAand also has a constructor. - We have also created class
Constructorsthat extendsBand also has its own constructor. - We create a new instance of
Constructors, and as a result all inherited constructors are first called and then the classe’s constructor is also called.
Let’s take a look at the code snippet that follows:
package com.javacodegeeks.snippets.core;
class A {
A() {
System.out.println("A constructor");
}
}
class B extends A {
B() {
System.out.println("B constructor");
}
}
public class Constructors extends B {
public Constructors() {
System.out.println("Public class constructor");
}
public static void main(String[] args) {
Constructors x = new Constructors();
}
}
Output:
A constructor
B constructor
Public class constructor
This was an example of how to inherit constructor calls from a super class to a sub class in Java.
