a toString method

public class ArrowTest { public static void main(String[] args) { Arrow arri, acr2, arr3, arr4, create and draw several arrows arri = null; 7/ to avoid error printing length below for (int i = 0; i --- The last arrow had a length of 4 (not including the arrow head). HINT: You can add more to a String in Java by using the += operator. To get the String you need for tostring, you just need to add the correct number of "."characters. Alternatively, there is a way to create the required String using a chart), Arrays.fill and String.valueof