CSC 213 Problems Assignment 2, Fall 2012

Notre Dame University CSC 213 Faculty Natural & Applied Sciences Assignment #2 1) To help build software for a nutrionist’s clinic, you are asked to create a class Patient with the following data members:  Name a string of variable size (dynamically created). Default Empty String  Gender a constant value of 1 character. Valid Values:”F” – “M”. Default: “F”  Weight The weight of the patient in Kg. Valid Values (3.5- 150). Default: 50.0.  Height The height of the patient in meters. Valid Values (0.50-2.20). Default: 1.65.  Obesity_BMI The value of BMI (Body Mass Index) over which the patient is considered to be obese. It should be of type float and is shared among all objects of this class .(For our patients is should be set to 30.0) And the following member functions:  A constructor with default arguments (integrity checks required).  A calculateBMI function that calculates the Body Mass Index of the patient. BMI = weight in kilograms / height in meters²  A printPatientInfo function to print on the screen all the information of a patient and prints “The patient is obese” if his BMI is greater than or equal to Obesity_BMI data member. This function should have a cascading capability.  An external function decrementWeight that decrements the weight by a certain value, calculates the new BMI and print on the screen if the patient is still obese or not. This external function should be able to access by name all members of your class. Write a program to test your class: - Create 2 patients objects. - Fill the objects created with different patients information. - Test all written functions on these patients. 2) 2.1 - Design a class point that has x and y coordinates as data members: Include the following member functions:  Constructor with arguments  Constructor without arguments (Default constructor)  Scale function: void scale(double a) This function is supposed to scale the coordinates of the point by a, i.e., multiply each by the real number a.  Print function: void print() This function is supposed to print a point on the screen in the format: [x,y]  Distance function: double distance(Point q). This function should calculate and return the distance between 2 points. The following formula gives the distance between two points (x1, y1) and (x2, y2) in the Cartesian plane: sqrt((x2 − x1)2 + (y2 − y1)2) It will be used as follows: void main(){ Point p(5,6); Point q(7,8); cout << p.distance(q) <<endl; //calculates and print the // distance between p and q; } 2.2 Using the class point, design the class circle. In addition to the data member center which is of type point, include the data member radius (which is a real number). Include the following functions:  Constructor with arguments  Constructor without arguments (Default constructor)  print member function which displays the radius and the x and y coordinates of center  area member function which returns the area of the circle  translate member function which takes as input argument a point p and translates the center of the circle by p  contains member function which takes as input argument a point p and checks whether or not p is inside the circle (hint: the distance between the center and the point should be less than or equal to the radius) Write a program to test your classes and functions. Submission The following should be returned to the instructor in a folder: 1. A first page with your name, the assignment number. 2. Problem Description. 3. A listing of your programs (class and client program) well documented. 4. A screen capture of the output of your program. Due date: Friday, November 23, 2012