When should I use “this” in a class?

Question

I know that this refers to a current object. But I do not know when I really need to use it. For example, will be there any difference if I use x i

Answer 1

“This” keyword in java is used to refer current class objects.

There are 6 uses of “this” keyword in java

1. Accessing class level variable: mostly used if local and class level variable is same
2. Accessing class methods : this is default behavior and can be ignored
3. For calling other constructor of same class
4. Using ‘this’ keyword as return value : for returning current instance from method
5. Passing ‘this’ keyword as argument to method Passing : for passing current class instance as argument
6. this keyword as argument to constructor : for passing current class instance as argument

ref: https://stacktraceguru.com/java/this-keyword-in-java