I dont understand this

Question

Please help me to understand the "this" inside the () from this code

Polymorphism obj = new Polymorphism(this);

Answer 1

Ome Here is a solution of your problem. It is only possible in case of polymorphism I think. Basically this refers to current object of the class B so it is possible when we create constructor of the another class A with the object of class B as a parameter.

https://code.sololearn.com/cM8vEGmZj0ja/?ref=app

Answer 2

I don't think that we can make a constructor which has an object of the class as a parameter. See this example when I tried to do it gives me error.

https://code.sololearn.com/ciAoDNfenpS9/?ref=app

Answer 3

AJ #Level 20 End Day okaay thank you so much!!

Answer 4

I think it has something to do with structs or classes.

Answer 5

"this" represent the current object

Answer 6

~ swim ~ Thank you so much for the answer!!

Answer 7

~ swim ~ oh thank you!!

Answer 8

This inside the()means this obj

Answer 9

"this" normally represent the current object in the class .
For instance on if you have two class which one class extends the other & let's say you creat a constructor which pass one parameter,now if you creat an object using the two class
For the first object which is created by super class you pass the value bay "this" operator
& For the second object which is created by the sub class you can pass the value by super operator

Answer 10

RinasSam Thank you so much for answering!
Do you know what is the difference if we dont write "this" inside the () ?

Answer 11

Ome Where did you find this because I am getting error when doing like your example inside main method.

Answer 12

AJ #Level 20 End Day this is my school assignment. It is inside a class not in main method

Answer 13

click the link for get explanation of ' this ' keyword

https://www.google.com/amp/s/www.geeksforgeeks.org/this-reference-in-java/amp/

Answer 14

This reference the current object

Answer 15

Yes what do you need to do

Answer 16

I remember that it represents an object in D.

Answer 17

C0MM1T Thank you so much for answering!

Do you know what is the difference if we dont write "this" inside ()? Because i erase "this" inside () and its error

Answer 18

AJ #Level 20 End Day i'm sorry :(, and dont know, but it works in my assignment.

Answer 19

Shaxzoda Sherzodovna thank you so much for answering!!

Answer 20

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