Method Overriding in Java | Java Method Overriding | Java for Beginners
Method Overriding in Java | Java Method Overriding | Java for Beginners
About this Video:
In this video,I have explained basic concepts of Method Overriding in simple words with real life example as well as practical example.
Links:
To learn about basics of Java click here 👇
• Java Tutorials for Beginners | Java course...
Java Inheritance video link:
• Java Inheritance | Java for Beginners
Notes:
1.What is Method Overriding?
2.Purpose of Method Overriding.
3.Rules about Method Overriding.
1. method Overriding:
To redefine parent class method in the child class is called as Method Overriding.
Or we can say,
Method Overriding means,
To modify parent class method in the child class as per requirment.
Purpose:
let's understand with an example
Let's imagine,
You are a software developer..
And you develop mathematics program that print all even numbers and you sold your program to a specific company and your program also working well on company side no issues in that.But after some days the requirement of company has changed and now they wanted to print all odd numbers instead of even numbers.
So in this situation what can you do?
So in this situation,you just need to modify Overriding method instead of modifieng whole entire code of a program.
That means, you can put your logic or implementation in Overriding method without touching entire code of program..
So basically,
You can easily modify Overriding method as per your need or as per your requirement without touching the rest of the code of a program and this is the main purpose of method Overriding.
3. Rules about Method Overriding:
1.1 There must be inheritance relationship between parent class and child class.
1.2 Name of Overriding method must be same.
1.3 Parameter list of Overriding method also must be same.
1.4 The overriding method must have same return type or subtype.
1.5 Final methods and static methods cannot be overridden.
1.6 Private methods can not be overriden.
_________ End_________________
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