Look Who it Was Random video

Reusability Tutorial -13 In OOPS(Co-Variant Return Type) In Hindi/URDU

363 views · Published 9 March 2018 · 5:27 · Indexed 28 October 2026

Channel: AndroJavaTech4U · 2018 · Science & Technology

Watch on YouTube

Co-VarientReturnType:-
When in a program the return type of parrent class method and the return type of child class method change in case of overriding this concept is called coverient return type.

Note:-From JDk1.5 It is possible to override method by changing in return type.but for this we have to follow the followling condition:-

1)-Both class method must have return type i.e. refrence type where primitive data type is not allowed.

Note-The classes which is used as a return type they also must have relation of parrent and child.


2)-I parrent class method return parrent class refrence and child class method return child class refrecne.

Stay tuned with me for more upcoming Videos, 
don't forget to subscribe my YouTube Channel and share your valuable comments in Comment section down below, i'll be happy t o help you all, your Surya ☺ 
      
program-
 

 Download  my you tube channel  Android application from here-
https://www.dropbox.com/s/stoehcarylm...
Firebase Tutorial No-6 URl-
https://www.youtube.com/watch?v=5IWBz...


Firebase Tutorial No-1 URl-
https://www.youtube.com/watch?v=gf0VQ...
Firebase Tutorial No-2 URl-
https://www.youtube.com/watch?v=srgAL...
Firebase Tutorial No-3 URl-
https://www.youtube.com/watch?v=TW0uO...
Firebase Tutorial No-4 URl-
https://www.youtube.com/watch?v=XXxRA...
Write  program url using Firebase Database-
https://www.dropbox.com/s/wxggu30ajqa...
Sqlite database tutorials part-1 url-
https://www.youtube.com/watch?v=6a9lI...

Sqlite database tutorials part-2 url-
https://www.youtube.com/watch?v=h1Peq...

Storage option url-
https://www.youtube.com/watch?v=KgCfx...

Internal Storage url-
https://www.youtube.com/watch?v=O-VKJ...

External Storage url-
https://www.youtube.com/watch?v=EteGm...

Shared Prefrences url-
https://www.youtube.com/watch?v=KZJC2...

Spinner Url-
https://www.youtube.com/watch?v=o3KZz...
CustomListView Url-
https://www.youtube.com/watch?v=2geTp...

ListView In Android Studio Part-1
https://www.youtube.com/watch?v=taItn...

ListView In Android Studio Part-1

ListView In Android Studio Part-2 With EventHandling
https://www.youtube.com/watch?v=F3tsW...

ListView In Android Studio Part-3 With EventHandling
https://www.youtube.com/watch?v=fCh5D...

Firebase:-
https://www.youtube.com/watch?v=Lncmj...

How to Install Java Url-
https://www.youtube.com/watch?v=NXlHE...

Download  my you tube channel  Android application from here-
https://www.dropbox.com/s/stoehcarylm...
 
GridLayout url-
https://www.youtube.com/watch?v=B3TUS...

TableLayout url-
https://www.youtube.com/watch?v=wbV3t...

RelativeLayout-
https://www.youtube.com/watch?v=80Kk_...

https://www.youtube.com/watch?v=1jnNF...

Linearlayout-
https://www.youtube.com/watch?v=yY3xL...
https://www.youtube.com/watch?v=vnEdL...

Connect on Socials:-

Facebook:- https://www.facebook.com/AndroJavaTec...
Twitter:- https://twitter.com/AndroJavaTech4U
Google Plus:- https://plus.google.com/u/0/+AndroJav...
LinkedIn:- https://www.linkedin.com/in/androjava...

More from this channel