Write a method called negativeSum that accepts a Scanner reading input from a file containing a series of integers, and print a message to the console indicating whether the sum starting from the first number is ever negative. You should also return true if a negative sum can be reached and false if not. For example, suppose the file contains the
following text:

38 4 19 -27 -15 -3 4 19 38

Your method would consider the sum of just one number (38), the first two numbers (38 + 4). the first three numbers (38 + 4 + 19), and so on to the end. None of these sums is negative, so the method would produce the following output and return false:

no negative sum

If the file instead contains the following numbers:

14 7 -10 9 -18 -10 17 42 98

The method finds that a negative sum of -8 is reached after adding the first six numbers. It should output the following to the console and return true:

sum of -8 after 6 steps