What is Constructor Chaining in Java | Constructor Chaining. смотреть онлайн

What is Constructor Chaining in Java | Constructor Chaining.

Code:
package com.impJavaConcepts;
class demo{
//super() - calls immediate parent class constructor
//super() - INHERITANCE is mandatory
//super() - first statement inside constructor
//super() and this() cannot be written in same constructor
demo(){
this(7);
System.out.println("this is a default constructor of demo class");
}
demo(int c){
System.out.println("This is integer constuctor of demo class");
}
}
public class ConstructorChaining {
//Calling a constructor from another constructor
//this() and super()
//this should always be first statement inside constructor
//Constructor Overloading
ConstructorChaining(){
this(5);
System.out.println("This is Default Construtor");
}
ConstructorChaining(int i){
this("Azhar Techno Coder");
System.out.println("This is int type Construtor");
}
ConstructorChaining(String s){
super();
System.out.println("String Constructor");
}
public static void main(String[] args) {
ConstructorChaining rv = new ConstructorChaining();
}
}

Chapters:
0:00 - Introduction to the video
0:31 - Achieving Constructor Chaining using this() Statement.
4:26 - Achieving Constructor Chaining using super() Statement.
6:25 - Achieving Constructor Chaining using super() Statement and this() statement.
7:08 - Super() only does constructor chaining if inheritance exists
7:36 - Rules of Super() statement.

Next Steps :

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#java
#constructorChaining
#javatutorial