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Reusability Tutorial -16 In OOPS| Constructor Chaining | Super | In Hindi/URDU

232 views · Published 14 March 2018 · 8:59 · Indexed 30 October 2026

Channel: AndroJavaTech4U · 2018 · Science & Technology

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In this video u can understand the concept of  Constructor Chaining  in Inheritance.
Constructor Chaining:-
It is the process of calling multiple constructors in a chain on single object.
Note:-There are two ways are used to performed constructor chaining:-
1)-Via ”this” keyword.
2)-Via “super” keyword.
For this we have use super and this keyword keyword.
syntex:-
super(args if any);
this(args if any);
Note:-In case of Constructor Chaining  super and this both  is the first statement in constructor body.
Note:-
It  means we can’t use this and super both in a single constructor.
Rule-Before Executing any child class constructor firstly execute its immediate parent class default constructor not parameterized.
Why:- In order to Initialized parent data member.
How:-
Because compiler added super keyword at the top of every constructor at compile time .




class A
{
A()
{
super();
}
}

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