You can download the source code for the examples in the book and the solutions to the following exercises from http://www.wrox.com.
Define a static method to fill an array of type char with a given value passed as an argument to the method.
For the adventurous gambler—use a stack and a Random object in a program to simulate a game of Blackjack for one player using two decks of cards.
Write a program to display the sign of the Zodiac corresponding to a birth date entered through the keyboard.
Write a program using regular expressions to remove spaces from the beginning and end of each line in a file.
Write a program using a regular expression to reproduce a file with a sequential line number starting at "0001" inserted at the beginning of each line in the original file. You can use a copy of your Java source file as the input to test this.
Write a program using a regular expression to eliminate any line numbers that appear at the beginning of lines in a file. You can use the output from the previous exercise as a test for your program.