title: sorting array of type object using Arrays.sort() method
body: <p>I know how to sort an array of objects using Arrays.sort() method in following way.</p>
  
  <pre><code>Arrays.sort(array of primitive type);   
  Arrays.sort(array of primitive type, from, to); 
  Arrays.sort(array of an object type);   
  Arrays.sort(array of an object type , from, to);    
  </code></pre>
  
  <p>but i have no idea about following two methods.</p>
  
  <pre><code>Arrays.sort(array of an object type , comparator);  
  Arrays.sort(array of an object type , from, to, comparator);    
  </code></pre>
  
  <p>Can someone please let me know how to sort array of type object using these methods.I request you to add code or any link that directs to the .java class.I tried to search it but could not find it.</p>
  
  <p>Thanks.</p>