Create a programme that generates an exception class named InvalidDocumentCodeException, which is intended to be fired when an incorrect document identification is found during processing. Assume that in a certain industry, all papers are assigned a two-character classification beginning with U, C, or P, which stands for unclassified, confidential, or proprietary. If a document identification that does not match that description is discovered, an exception is raised. Make a driver programme that will test the exception and allow it to end the programme.

Let's say there is a catch handler that exactly matches the exception object type. What are the conditions in which exception objects of that type could be handled differently?

Create a programme that implements the StringTooLongException exception class, which is intended to be fired if a string is found to have an excessive number of characters. Read user-supplied strings into the program's main driver until the user inputs "DONE." Throw the exception if a string with too many characters (let's say 20) is entered. Permit the programme to end when an exception is thrown.

First, launch NetBeans and close any previous projects that may be open (at the top menu go to File ==> Close All Projects).Then create a new Java application called "CheckString" (without the quotation marks) according to the following guidelines.** Each method below, including main, should handle (catch) any Exceptions that are thrown. ** ** If an Exception is thrown and caught, print the Exception's message to the command line. ** Write a complete Java method called checkWord that takes a String parameter called word, returns nothing, and is declared to throw an Exception of type Exception. In the method, check if the first character of the parameter is a letter. If it is not a letter, the method throws an Exception of type Exception with the message of: "This is not a word." void checkWord(String word) throws Exception Write a complete Java method called getWord that takes no parameters and returns a String. The method prompts the user for a word, and then calls the checkWord…