constructor with non essential vars

Question

I was wondering if it is possible and if so how, to create a constructor that takes three variables but will not through an error if the last two are not passed?

something like:

public void onCreate(Bundle savedInstanceState, String s1<non essential>) 
    {

Answer 1

Create more contructors

public MyCreate(Bundle savedInstanceState) 
    {

public MyCreate(Bundle savedInstanceState, String s1) 
    {

public MyCreate(Bundle savedInstanceState, String s1, String s2) 
    {

try to read this article on constructor overloading.