Set up a Java program with a function to calculate depreciation. The important data items required for such a function are the estimated number of years the item will be in use (the "life" of the ...

You can calculate the sum-of-the-years' digits by adding up each of the years of an asset's useful life. You would add up 6 + 5 + 4 + 3 + 2 + 1 = 21 if an asset had a useful life of six years.