We informally define the term "corresponding element " as follows: The first element in an array and the last element of the array are corresponding elements . Similarly, the second element and the element just before the last element are corresponding elements . The third element and the element just before the element just before the last element are corresponding elements -- and so on. Given an array a and a variable n that contains the number of elements in a , write an expression for the corresponding element of a[i]

Must be written in java. I think its something small like this:

a[n-i-1]