Write a java code that computes the alternating sum of all the elements in an array. For example, if your program has an array with these elements. 1  4  9  16  9  7  4  9  11 It will compute: 1 -  4 + 9 - 16 + 9 - 7 + 4 - 9 + 11 = -2

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Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.