This in java

Definition of this in Java

In Java this is a reference variable that refers to the current object or can be said this in Java is a keyword that refers to the current object instance.

• Call current class methods and fields
• To pass an instance of the current class as a parameter
• To differentiate between the local and instance variables

Call current class methods and fields

• this helps to access fields (instance variables) of the current object.
• It also helps to call methods of the same class explicitly

Methods to Use this in Java

• Using "this" keyword to refer to current class instance variables.
• Using this() to invoke the current class constructor
• Using 'this' keyword to return the current class instance
• Using 'this' keyword as the method parameter
• Using 'this' keyword to invoke the current class method
• Using 'this' keyword as an argument in the constructor call