title: Calling an overloaded method
body: <p>how is it to make an overloaded method do the same plus their new functionality?
  Without copying the same code again.</p>
  
  <p>Something like this:</p>
  
  <pre><code>void method(){
  
  //code 1
  }
  
  void method(String s){
  
  //code 1
  //code 2
  }
  </code></pre>