A: Exercises 12.1 and 12.2 in the book. The topic is reading from a file.
B: Exercises 12.3 and 12.4 in the book. The topic is reading and writing to and from a file.
E1: Exercise 12.20 in the book. The topic is regular expressions.
E2: Implement the Serializable interface on a non-trivial class from your project. Write a number of objects to a file, close the program and read the objects into your program again.