(JAVA) Problem description: You will need to write a function int[] reverseTwo(int[] array). The input for this function is an int array. Your job is to reverse every adjacent element pairs in this array. The reversed array shall be returned. If the length of the array is odd, then the last element does not need to be reversed. Sample input/output: Input [1, 2, 3, 4] Output [2, 1, 4, 3] Input [-1] Output [-1] Input [1, 2, 3, 4, 5] Output [2, 1, 4, 3, 5] Explanation The length of this array is odd, so the last element need not to be reversed.