[Solved] CSCI804 Assignment 1

This assignment aims to establish a basic familiarity with C++ classes. The assignment introduces increasingly object-based, C++ style of solution to a problem.

General Requirements

• You should observe the common principles of OO programming when you design your classes.
• You should make proper documentation and implementation comments in your codes where they are necessary.
• Logical structures and statements are properly used for specific purposes.

Objectives

On completion of these tasks you should be able to:

• code and run C++ programs using the development environment.
• make effective use of the on-line documentation system that supports the development environment.
• code programs using C++ in a hybrid style (procedural code using instances of simple classes) and in a more object-based style.
• manipulate string data.

Tasks:

In this assignment, you will design and implement classes that handle real estate properties inspections by using the following UML diagrams (ID means unique identifier).

Define a class Agent in a file Agent.h and implement constructors / destructor (if necessary), member functions in a file Agent.cpp.

Define a class Property in a file Property.h and implement constructors / destructor (if necessary), member functions in a file Property.cpp.

Define a class Buyer in a file Buyer.h and implement constructors / destructor (if necessary), member functions in a file Buyer.cpp.

Define a class Inspection in a file Inspection.h and implement constructors / destructor (if necessary), member functions in a file Inspection.cpp. Define and implement the functions addNewBooking(), searchBookings() and saveBookings() in this class to perform book a new inspection, search inspection bookings and save inspection bookings.

The types of data members are up to you.

Hint: The class Inspection may composite the classes (arrays) Agents, Properties and Buyers.

Implement main() function and other necessary functions in a file realEstate.cpp. The program loads data from the text files which names should be passed into the main() function by the command line arguments when it starts. The program loads data into the dynamic memories (No STL allowed), and displays the records that loaded from the text files. For example,

Load agents records.

100; David Roman Volma; 0401123456

101; Bill Grace; 0403123321

102; Alice Brown; 0402111222 Load properties information.

1001; 5/10 Northfields Ave, North Wollongong, NSW 2500; Townhouse; 280000

1002; 3 Moore Street, Wollongong, NSW 2500; House; 450000 1003; 23/87 Norman Street, NSW 2500; Unit; 210000 Load buyers information.

Alice Smith; 1/2 Moore Street, Wollongong, NSW 2500; 0212345678

Bob Turyn; 23 Southland Road, Wollongong, NSW 2500; 0244123456

The text files agents.txt, properties.txt and buyers.txt for testing can be downloaded from elearning. See the section Testing for more details.

Hint: You may create dynamic arrays to store data above. Dont forget to delete those arrays before the program end.

Testing:

In the working directory on banshee, you can compile the program by g++ o ass1 realEstate.cpp Agent.cpp Property.cpp Buyer.cpp Inspection.cpp Or to make it simple, you can compile the program by g++ o ass1 *.cpp

To run the program, you should pass the files names to the main() by

./ass1 agents.txt properties.txt buyers.txt

Note: Do not define constant files names inside the source code. You can use bcheck to check if there is any memory leak by bcheck ./ass1 agents.txt properties.txt buyers.txt

Then the program displays the following menu and gets input choices in a loop until the input choice is 0 (zero):

1. Book a new inspection.
2. Search inspection bookings. Input choice (0-quit):

When the input choice is 1, the program will get inputs of a new booking and save the data into the dynamic memories. The function addNewBooking() in the class Inspection will be called to add a new booking in the memory. The inputs like following (Note: Data in Red means input from the keyboard.):

Add a new inspection.

Agent number: 100 Buyer phone: 0212345555 No such a buyer.

Buyer phone: 0212345678

Property id: 100 No such a property.

Property id: 1001

Inspection date (day month year): 10 3 2013 Inspection time (hour minute): 10 0 Comments: good

Suppose we have more inspection bookings, 1. Book a new inspection.

2. Search inspection bookings. Input choice (0-quit): 1 Add a new inspection.

Agent number: 100

Buyer phone: 0212345678

Property id: 1002

Inspection date (day month year): 10 3 2013

Inspection time (hour minute): 10 30

Comments: very good

1. Book a new inspection.
2. Search inspection bookings.

Input choice (0-quit): 1 Add a new inspection.

Agent number: 101

Buyer phone: 0244123456

Property id: 1003

Inspection date (day month year): 11 3 2013

Inspection time (hour minute): 10 0 Comments: I want to see more houses 1. Book a new inspection.

2. Search inspection bookings. Input choice (0-quit): 2

When the input choice is 2, the program will get input of an agents number and find all inspections booked for him/her. The function searchBookings() in the class Inspection will be called to do the search.

Input agent number: 100

The agent: 100; David Roman Volma; 0401123456 has following inspections booked.

Property :1001; 5/10 Northfields Ave, North Wollongong, NSW 2500; Townhouse;

280000 by

Alice Smith; 1/2 Moore Street, Wollongong, NSW 2500; 0212345678 at

10/3/2013 10:0

Feedback: good

Property :1002; 3 Moore Street, Wollongong, NSW 2500; House; 450000 by

Alice Smith; 1/2 Moore Street, Wollongong, NSW 2500; 0212345678 at

10/3/2013 10:30

Feedback: very good

1. Book a new inspection.
2. Search inspection bookings.

Input choice (0-quit): 2

Input agent number: 101

The agent: 101; Bill Grace; 0403123321 has following inspections booked.

Property :1003; 23/87 Norman Street, NSW 2500; Unit; 210000 by

Bob Turyn; 23 Southland Road, Wollongong, NSW 2500; 0244123456 at

11/3/2013 10:0

Feedback: I want to see more houses

When the input choice is 0, the program will save the inspections information into a text file and quit.

1. Book a new inspection.
2. Search inspection bookings.

Input choice (0-quit): 0

Save file to: insp.txt

When we check the text file insp.txt, we can find the file contains the following information.

Agent: 100; David Roman Volma; 0401123456

Property: 1001; 5/10 Northfields Ave, North Wollongong, NSW 2500; Townhouse;

280000 be inspected by a buyer:

Alice Smith; 1/2 Moore Street, Wollongong, NSW 2500; 0212345678 at 10/3/2013 10:0

Feedback: good

Agent: 100; David Roman Volma; 0401123456

Property: 1002; 3 Moore Street, Wollongong, NSW 2500; House; 450000 be inspected by a buyer:

Alice Smith; 1/2 Moore Street, Wollongong, NSW 2500; 0212345678 at 10/3/2013 10:30 Feedback: very good

Agent: 101; Bill Grace; 0403123321

Property: 1003; 23/87 Norman Street, NSW 2500; Unit; 210000

be inspected by a buyer: Bob Turyn; 23 Southland Road, Wollongong, NSW 2500;

0244123456 at 11/3/2013 10:0

Feedback: I want to see more houses