writing a general-purpose sort method in Java, the sort method needs to compare objects. There are two ways to give the sort method the code to compare objects, implementing the interfaces Comparable and Comparator respectively. Briefly, describe the two ways. Write excerpts of use examples

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Merge sort

Merge Sort recursively sorts a given collection of numbers or elements by using the divide and conquer strategy in less time. It is one of the most used algorithms, with the worst-case time complexity of O (n log n). It was invented by John Von Neumann. The algorithm continuously divides an array into sub-arrays until each sub-array consists of a single element. It then merges those sub-arrays to produce a sorted array.