I have implemented the MergeSort algorithm, in which I have created a void sort(arr) method, that takes the array and sort it, I am repeating code for the method to pass the array parameter of Integers or Doubles. What about String, ... etc

This implementation works so far, but is there any way to implement this generically this algorithm?

Helpful links:

• https://codereview.stackexchange.com/questions/42590/is-there-anything-to-improve-in-this-mergesort-code-in-java
• http://thecodemaster.net/merge-sort-algorithm-using-generics-in-java/