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Question 1: ArraySum  1a) Method to transform a number of an array...

Question 1: ArraySum
1a) Method to transform a number of an array
Use a method that receives two numbers with the same number of digits. It should transform each
number into an array of integers that represent the given number such that each element is a digit in the
array. example: given number:
1234 -> [1, 2, 3, 4]
In ArraySum.java implement this functionality inside the transform method.
int[] transform(int num)
1b) Method to compute the sum of two arrays that represent a very big number.
Assume you have two arrays of integers that represent two very big numbers as explained above and
shown as follows:
At this step, we should transform the two big numbers into two arrays.
First:
transform(1234) -> a which is [1, 2, 3, 4]
transform(1211) -> b which is [1, 2, 1, 1]
We know that a and b represent 1234 and 1211 respectively.
Now, complete the following method in ArraySum class that computes the sum of two given arrays.
Note: You are not allowed to transform the arrays into integers and then compute the sum since the
numbers will be very large numbers and you cannot store them into simple primitive data types.
Hint: In math, we always start from the last digit in the right (index i). In the case of having a carry, we
should include it in the sum calculation of the next digits (index i - 1). int[] sum(int[] a, int[] b)
Test case 1:
a -> [1, 2, 3, 4]
b -> [1, 2, 1, 1]
sum(a, b) -> sum([2,4,4,5], [1, 2, 1, 1])
Test case 2:
a -> [1, 2, 3, 4]
b -> [9, 2, 9, 5]
Page 5
sum(a, b) -> [1,0,5,2,9]
Note: You are not allowed to use ArrayList or other data structures that we have not covered in the class
in order to solve this question.

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