Java Programming Tutorial - 20 - Using "this" in Java 

============Main Class=================================
public class MainClass {
public static void main(String[] args){
Person person1 = new Person("Andrew");
Person person2 = new Person();
person1.setName("Alex");
}
}
============Person Class===============================
public class Person {
//instance variable
private String name;
//constructor to set name to argument given in parameter
public Person(){
this("default name");
}
//constructor to set name to argument given in parameter
public Person(String name){
this.name = name;
System.out.println("Person created: " + name);
}
//setter method to set name variable of object, displays name change
public void setName(String name){
this.name = name;
System.out.println("Changed name to " + getName(this));
}
//getter method to return object name, takes object in parameter
public String getName(Person person){
return name;
}
}