讲解COLT 3、辅导Software Technology、辅导JAVA程序设计、讲解JAVA

Software Technology 1

Assignment 2

COLT 3 2018

Due: Week 10 Friday 11:55pm

Due Date: 14/12/2018

Submission and Assessment requirements:

This assignment will be marked out of 60 marks and carries 10 % mark of the overall mark for the

unit. Please check the unit outline for late penalties and resubmissions.

All submissions need to be electronic submissions through Canvas before the due date. Submission

should be one single zip file (A2StudentID.zip) with JAVA projects for all parts, and a short report (word

document). The report should include:

A copy of the source code for each question.

Evidence of testing (Test plan / screen shots of the results obtained at several stages of

the question for each part). (At least 2 test cases should be shown for each question)

Comments on necessary parts of the code.

A short reflective summary on what you have learnt this assignment.

Proper naming conventions.

Important Notes:

1. The requirements for some programming problems are specified clearly, and for some, they are

not specified clearly, and the requirements are somewhat vague. This has been done intentionally

to make it more challenging, and it is expected that you come up with appropriate design strategy

to solve these problems. You may want to refer to the lab activities in the tutorial classes for

guidance on how to attempt each question.

2. Include UML class design wherever needed using ObjectAid a free UML class diagram creation tool

available at http://www.objectaid.com/home

3. General requirements for each program or class submitted are to have a header or block of

comments at the top. The comments should contain your name, question number, part and the

date. Here is an example:

/*******************************

Author: John Smith (u123456)

Assignment_2_Q1_(12/12/2016)

********************************

Part.1: File I/O in Java [15 marks]

The UC Irvine Machine Learning repository contains many datasets for conducting computer science

research. One such dataset is the Haberman’s Survival dataset, available at

http://archive.ics.uci.edu/ml/datasets/Haberman's+Survival . The file “haberman.data” contains survival

data for breast cancer patients in comma-separated value format. The first field is the patient’s age at the

time of surgery, the second field is the year of the surgery, the third field is the number of positive axillary

nodes detected, and the fourth field is the survival status. The survival status is 1 if the patient survived 5

years or longer and 2 if the patient died within 5 years.

Write a Java Console or GUI based application program that reads the CSV file and calculates the average

number of positive axillary nodes detected for patients that survived 5 years or longer, and the average

number of positive axillary nodes detected for patients that died within 5 years. A significant difference

between the two averages suggests whether or not the number of positive axillary nodes detected can be

used to predict survival time. Your program should ignore the age and year fields for each record.

(8 mark): Write the code include appropriate input validation, error and exception handling code.

(3 Marks): Test Plans

(4 mark): Demonstration to Tutor in week 10.

Part.2: Objects and Classes, Inheritance and Polymorphism(10+12+10+13)

1. Create a GUI application with a method that accepts a string as an argument and returns the

number of vowels that the string contains. The application should have another method that

accepts a string as an argument and returns the number of consonants that the string contains. The

application should let the user enter a string, and should display the number of vowels and the

number of consonants it contains.

(6 mark): Write the code include appropriate input validation, error and exception handling code.

(2 Marks): Test Plans

(2 mark): Demonstration to Tutor in week 10.

2. Write a class named Employee that has the following properties.

Name: The Name property holds the employee's name.

IdNumber: The IdNumber property holds the employee's ID number.

Department: The Department property holds the name of the department in which the

employee works.

Position: The Position property holds the employee's job title.

The class should have the following overloaded constructors:

A constructor that accepts the following values as arguments and assigns them to the

appropriate properties: employee's Name, IdNumber, Departmentand Position.

? A constructor that accepts the following values as arguments and assigns them to the

appropriate properties: employee's Name and IdNumber. The Departmentand Position

properties should be assigned an empty string.

A parameter less constructor that assigns empty string to Name, Department and Position

properties, and 0 to IdNumber.

Create three employee objects to hold the following information:

Name idNumber Department Position

Susan Meyers 47899 Accouting Vice President

Mark Jones 39119 IT Programmer

Joy Rogers 81774 Manufacturing Engineer

(7 mark): Write the code include appropriate input validation, error and exception handling code.

(2 Marks): Test Plans and UML Diagram.

(3 mark): Demonstration to Tutor in week 10

3. Person and Customer classes:

Design a class named Person with properties for holding a person's name, address, and telephone

number. Next, design a class named Customer, which is derived from the Person class. The

Customer class should have a property for a customer number and a Boolean property indicating

whether wishes to be on a mailing list. Demonstrate an object of customer class in a simple GUI

application.

(6 mark): Write the code include appropriate input validation, error and exception handling code.

(2 Marks): Test Plans and UML Diagram

(2 mark): Demonstration to Tutor in week 10

4. PreferredCustomer classes:

A retail store has a preferred customer plan where customers can earn discounts on all their

purchases. The amount of discount depends on customer's cumulative purchases in the store and

the business rules for discounts is as follows:

When a preferred customer spends $500, he or she gets a 5 % discount on all future purchases.

When a preferred customer spends $1000, he or she gets a 6 % discount on all future

purchases.

When a preferred customer spends $1500, he or she gets a 7 % discount on all future

purchases. When a preferred customer spends $2000, he or she gets a 10 % discount on all future

purchases.

Design a class called PreferredCustomer, which is derived from the Customer class you created in

No 3. The PreferredCustomer class should have properties for the amount of the customer's

purchases and the customer's discount level. Demonstrate the class in a simple GUI application.

(8 mark): Write the code include appropriate input validation, error and exception handling code.

(2 Marks): Test Plans

(3 mark): Demonstration to Tutor in week 10