How to Implement Merge Sort Algorithm in Java?

How to Implement Merge Sort Algorithm in Java?

In this example, I will learn to execute merge sort algorithm in Java.

To understand this example, you should have the knowledge of the following Java programming topics:

-Java Methods

-Java while and do...while Loop

-Java Arrays

Example: Java Program to Implement Merge Sort Algorithm

merge.png

Output

output.png

Here, the elements of the array are sorted in ascending order. If we want to sort the elements in descending order, then inside the first while loop of the merge() method, we can change the code as:

// the less than sign is changed to greater than
if (L[i] >= M[j]) {