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1. Create package com.benko.exercise.sort
2. In that package create two clases:

• SortingApp - class with the main method, an entry point for the application
• BubbleSorter - having method called sort that implements the bubble sort algorithm

The main method should:

• create an array of integers (can be hardcoded),
• create an instance of the BubbleSorter
• sort the array by invoking the BubbleSorter#sort() method of the sorter instance, and
• print sorted array to the standard output.

The declaration of the sort method should be:

void sort(int[] numbers)

In the com.benko.exercise.sort package please create an interface called Sorter.
It should have just one operation: void sort(int[] numbers);
There are already two classes in that package, that should implement this interface: BubbleSorter and DummySorter.

Please:

1. Create the interface (as mentioned above)
2. Modify both *Sorter classes so that they implement newly created interface
3. In SortingApp invoke sort method on interface, rather than concrete class, i.e.:

Sorter sorter = new BubbleSorter();
sorter.sort(numbers);
//etc