Write a method called findMultipleofThree that returns the index of the last value in the array that is a multiple of 3. If no index of 3 exists, return -1.

For example, in the array

[4, 7, 9, 7, 12]

the last multiple of three is 12, which occurs at index 4.

Sample output:

The following index holds the LAST multiple of 3: 4

public class LastMultipleofThree

{

public static void main(String[] args)

{

int[] numbers1 = {76, 75, 3, 17, 12, 22, 7};

System.out.print("The following index holds the LAST multiple of 3: " + findMultipleOfThree(numbers1));

}

public static int findMultipleOfThree(int[] arr)

{

// your code goes here!

}

}

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