Write a Java program that requests a user to input their first name. The program should verify that the user enters a reasonable first name. A reasonable first name should begin with a capital letter. It should be between 2 and 25 characters in length. It shouldn't contain any special characters.

This program should use the .matches(<...>) method with a regular expression. If the user does not enter a valid name, your program should continually request that they enter a valid name until a valid name is entered.