Pre-requirement:
https://www.youtube.com/watch?v=mizipPZmdNw&t=3s
https://www.youtube.com/watch?v=A1SwvC-1avU&t=207s
https://www.youtube.com/watch?v=eGyvy0ZsxNI&t=1s
"this" is a reference variable and it refers current object.
This keyword is used to refer current class instance variable. if there is any ambiguity between instance variable and parameter, this keyword can solve this probelm os ambiguity.
in this video we will learn this keyword in java with examples.
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