Java Programming/Keywords/this

this is a Java keyword. It contains the current object reference.

Solves ambiguity between instance variables and parameters .
Used to pass current object as a parameter to another method .

Syntax:

this.method();
or
this.variable;

Example #1 for case 1:

public class MyClass
 { 
    //...
    private String value;
    //...
    public void setMemberVar( String value )
    {
        this.value= value;
    }
 }

Example #2 for case 1:

public class MyClass
 { 
    MyClass(int a, int b) {
        System.out.println("int a: " + a);
        System.out.println("int b: " + b);
    }
    MyClass(int a) {
        this(a, 0);
    }
    //...
    public static void main(String[] args) {
        new MyClass(1, 2);
        new MyClass(5);
    }
 }