Write a java method to search for an element in an array using a linear search. Many list processing tasks, including searching, can be done recursively. The base case typically involves doing something with a limited number of elements in the list (say the first element), then the recursive step involves doing the task on the rest of the list. Think about how linear search can be viewed recursively; if you are looking for an item in a list starting at index i: o ¬If i exceeds the last index in the list, the item is not found (return -1). o ¬If the item is at list[i], return i. o ¬If the is not at list[i], do a linear search starting at index i+1

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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.