Problem: Write a method that will sum all digits of a number and replace the number with its digit sum. Data: A list containing 0 or more values. The list will not point at null. All numbers will be positive.

Output: All numbers will be replaced by their digit sum.

Help: The method for this problem does not return nor print anything. Yoiu must change the values in the list that was passed in.

Starting List
1, 212, 333, 49
99, 453
213

Ending List
1, 5, 9, 13
18, 12
6

I need this in java with arraylists.

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