Java™ How To Program (Early Objects), Tenth Edition

Answers to Self-Review Exercises

15.1

a) False. These three streams are created for you when a Java application begins executing.

b) True.

c) True.

d) False. Text files are human readable in a text editor. Binary files might be human readable, but only if the bytes in the file represent ASCII characters.

e) True.

f) False. Class Formatter contains method format, which enables formatted data to be output to the screen or to a file.

15.2

a) Scanner inOldMaster = new Scanner(Paths.get("oldmast.txt"));

b) Scanner inTransaction = new Scanner(Paths.get("trans.txt"));

c) Formatter outNewMaster = new Formatter("newmast.txt");

d)

Click here to view code image

Account account = new Account();account.setAccount(inOldMaster.nextInt());account.setFirstName(inOldMaster.next()); ...