Java this Keyword

Java this Keyword:

Keyword “THIS” in Java is a reference variable that refers to the current object. The various usage of the keyword Java “This” in Java is as per below,

• It can be used to refer current class instance variable.
• It can be used to invoke or initiate current class constructor.
• It can be passed as an argument in the method call.
• It can be passed as argument in the constructor call.
• It can be used to return the current class instance.

Example of Java this Keyword:

public class Main {
	
	int x = 6;
	int y = 4;
	
	public static void main(String[] args) {
		// TODO Auto-generated method stub

	   new Main().add(6,4);
	    
		}
	
	public Main add(int x, int y) {
		System.out.println("x + y = "+ this.x + this.y);
		return this;
		
	}
	

}