Time to get your hands dirty, and play a litle with exceptions.
First, create the following Exception class:

• StringTooLongException subclass of Exception
• Constructor that takes a single parameter "message"
  (calls the superclass constructor passing this message)

Next, create a class MyScanner, with the following methods:

• Constructor, which takes as an input paramter a variable of type Scanner and an integer maxStringLength
  
• boolean hasNext(), which returns true if the contained scanner has a next token
• string nextString(), which calls nextLine() on the contained Scanner.  If the next line has a length longer than the maxStringLength, throw a StringTooLongException.  Otherwise, return the next line
  

Finally, create a main program that:

• Creates a new scanner using System.in
• Creates a new MyScanner using this scanner and 10 (use a constant for the 10!)
• Goes through each line (using hasNext() and nextString()) printing out all lines whose length is less than or equal to 10. Strings with a length > 10 should be skipped. You'll need to use a try/catch for this!

If you have time, extend your main as follows:

• Main should first try to create a new scanner based on the filename passed in as a command line parameter (that is, args[0]). If no file exists, create a scanner using System.in. You'll need to use try/catch for this!
• Creates a new MyScanner using this scanner, and a maximum string length of 10 (this should be a constant!) (this is unchanged from previous version of main)
• Goes through each line of the input file (using hasNext() and nextString()), printing out all lines that have a length > 0 and <= maximum string length.  Strings that have a length == 0 or > maximum string length should be skipped.  You'll need to use try/catch for this! (this is unchanged from previous version of main)