Use of This in Java -

how increment method calling work in following code:

public class leaf {    int = 0;   leaf increment(){     i++;     return this;   }   void print(){     system.out.println("i = "+ i);   }   public static void main(string args[]){     leaf x = new leaf();     x.increment().increment().increment().print();   } } 

that example of method chaining.

by returning this, subsequent calls instance methods of original object instance can made in chain.

each call increment() increases value of i 1, since call acting on original object instance.

finally, print() called on original object instance output value of i.