Java please and answer both please

Write a program that creates an exception class called StringTooLongException, designed to be thrown when a string is discovered that has too many characters in it. In the main driver of the program, read strings from the user until the user enters "DONE". If a string is entered that has too many characters (say 20), throw the exception. Allow the thrown exception to terminate the program. PP 11.1 PP 11.2 Modify the solution to PP 11.1 such that it catches and handles the exception if it is thrown. Handle the exception by printing an appropriate message, and then continue processing more strings