This program uses Java to implement the Two Way External Merge Sort.
Included in the test folder is a text file that includes a million unsorted integers.
You may specify your own unsorted numbers separated by commas text file to test.
You must compile with Java 8+
Open your terminal/command line and type in the following commands:
javac ExternalMergeSort.java
java ExternalMergeSort "test/numbers.txt"