java language please

Question #4 (40pts) Write a method called collapse that accepts an array of integers as a parameter and returns a new array containing the result of replacing each pair of integers with the sum of that pair. For example: if an array called list stores the values {7,2,8,9,4,13,7,1,9,10), then the call of collapse(list) should return a new array containing {9,17,17,8,19). The first pair from the original list is collapsed into 9 (7+2), the second pair is collapsed into 17 (8 + 9), and so on. If the list stores an odd number of elements, the final element is not collapsed. if the list had been {1,2,3,4,5), then the call would return (3,7,5). Your method should not change the array that is passed as a parameter