CIS 210 Fall 2007

Assignment 4

Homework 4 - Week 4

Topics: Using objects, mutable and immutable objects, designing objects

This homework is due Friday, October 26 at 5 PM.

Use the web service e-turnin to submit your work electronically. You may turn in revisions of your homework up to the time it is due.

Note that all the problems in this assignment are programming problems. The third problem must be done individually, not in pairs. The first two problems may be done as pairs.

Problem 4.1 - Using BigInteger objects
Time Estimate	2 hours.
Readings	API for the BigInteger class
Turn in	Choices.java
Points	35
This programming assignment may be done by pair programming.

The full description of this problem can be found at problem description for 4.1.

Problem 4.2 - Coding a simple object
Time Estimate	1.5 hours.
Readings	Liang Chapters 7, 8 and String API
Turn in	UserID.java
Points	35
This programming assignment may be done by pair programming.

The full description of this problem can be found at problem description for 4.2.

Problem 4.3 - Designing and Using Objects
Time Estimate	1 hour
Readings	Liang Chapter 7
Turn in	Customer.java, Account.java, BankTester.java
Points	30
This is an individual programming assignment (not to be done as a pair).

This problem requires a very small amount of coding, but reviews the ideas of instance data and mutable objects.
The full description of this problem can be found at problem description for 4.3.