How do you code this in Java?

Problem 2: When comparing strings with the built-in method compareTo, the comparison is not always satisfactory. For example, "file10". compareTo ("file2") returns a negative value, indicating that "file10" should come before "file2", even though we would prefer it to come afterwards. Produce a method int numCompare(String str1, String str2) that, when comparing two strings that are identical except for a positive integer at the end, compares the integers. For example, numCompare("file12", "file2") should return 1 , but numCompare("file12", "file11") and numCompare ("file2", "doc12") should return -1. Write and use a helper method int findNumberPosition (String str) that returns the starting position of the number, or 1 if there is none