Question

C/C++ Final Project

PROGRAM DUE MONDAY OF FINALS WEEK. Minimum requirements, the program must include the following features:

1. Create a program that interacts with the user.
2. Use at least 3 objects (instances of different classes)
3. Use at least one example of inheritance
4. Use at least one pointer
5. Use at least one pass by reference
6. Use at least one overloaded function
7. Use separate files for class definition, class function definition, cpp file that has main
8. Use at least 2 loops
9. Use at least 2 selection statements
10. Include at least one array
11. Include a write to a file
12. Include a read from file
13. Include data validation.
14. Write and use data validation functions in a private library of your creation that includes generic functions for getString, getInt, and getFloat.
15. Break program into appropriate functions.

Documentation: You must include a document, with numbers 1-15, that tell where and how these criteria were met in your program.

For design work:

1. Create a basic design using a UML hierarchy and class diagram
2. Create high level logic design for your program using Pseudocode

Answer 1

CODE:-

C++ files As given in the problem:

File name: classes.h

#ifndef CLASSES_H

#define CLASSES_H

//Base class

class baseShape

{

protected:

int shapeWidth, shapeHeight;

//Public functions of the class

public:

//Class constructor

baseShape( int checkVariable, int h);

//Function to find the area of the shape

int findArea();

};

//Derived class inherited from base class baseShape

class derivedRectangle: public baseShape

{

public:

//Class constructor

derivedRectangle( int checkVariable, int h);

//derived redefinition of the function

int findArea ();

};

//Other derived class inherited from baseShape

class derivedTriangle: public baseShape{

public:

derivedTriangle( int checkVariable, int h);

//redefinition of findArea function

//function overloadin can be used here

int findArea ();

};

#endif

File Name: classes.cpp

#include "classes.h"

#include <iostream>

using namespace std;

baseShape::baseShape( int checkVariable, int h)

{

shapeWidth = checkVariable;

shapeHeight = h;

}

//Function to find the area of the shape

int baseShape:: findArea()

{

cout << "Base class area :" <<endl;

return 3;

}

derivedRectangle::derivedRectangle( int checkVariable, int h):

baseShape(checkVariable, h) { }

//derived redefinition of the function

int derivedRectangle::findArea ()

{

cout << "Derived class findArea :" <<endl;

return (shapeWidth * shapeHeight);

}

derivedTriangle :: derivedTriangle( int checkVariable, int h):baseShape(checkVariable, h) { }

//redefinition of findArea function

//function overloadin can be used here

int derivedTriangle::findArea ()

{

cout << "derivedTriangle class findArea :" <<endl;

return (shapeWidth * shapeHeight / 2);

}

File Name: Main.cpp

//Include the header fileData

#include <iostream>

#include <iomanip>

#include <fstream>

#include "classes.h"

//Using the namespaces

using std::setw;

using namespace std;

void userInteract ();

void pointerTest();

void selection();

void switchCase();

void ArrayElements();

void fileOPerations();

//Function to swap using pass by refference

void swapPassByReference(int first, int second)

{

int *temp;

temp = first;

first = second;

second = temp;

}

//function uses a pointer

void pointerTest()

{

int intVar;

cout << "\n\nAddress of intVar variable: ";

cout << &intVar << endl;

}

void userInteract(){

float input1, input2, p;

cout << "Please Input two numbers: ";

cin >> input1 >> input2;

p = input1*input2;

cout << "Product of your inputs is = " << p;

}

//To use selection statements

void selection()

{

int checkVariable = 100;

if( checkVariable < 20 )

{

cout << "checkVariable is less than 20;" << endl;

}

else

{

cout << "checkVariable is not less than 20;" << endl;

}

cout << "value of checkVariable is : " << checkVariable << endl;

}

//To use array

void ArrayElements()

{

//declare the array   

int n[10];

//The for loops

for ( int itr = 0; itr < 10; itr++ )

{

n[itr] = itr + 100;

}

cout << "Element" << setw(13) << "Value is" << endl;

for ( int vi = 0; vi < 10; vi++ )

{

cout << setw( 7 )<< vi << setw( 13 ) << n[ vi ] << endl;

}

}

//Switch for select

void switchCase()

{

char mark = 'D';

switch(mark)

{

case 'A' :

cout << "Excellent!" << endl;

break;

case 'B' :

case 'C' :

cout << "Well done" << endl;

break;

case 'D' :

cout << "You passed" << endl;

break;

case 'F' :

cout << "Failed" << endl;

break;

default :

cout << "Invalid mark" << endl;

}

cout << "Your mark is " << mark << endl;

}

//Read the fileData

void fileOPerations() {

char fileData[100];

ofstream filewrite;

filewrite.open("file.txt");

cout << "File write" << endl;

cout << "Please input your name: ";

cin.getline(fileData, 100);

cin.getline(fileData, 100);

filewrite << fileData << endl;

cout << "Please input your age: ";

cin >> fileData;

cin.ignore();

filewrite << fileData << endl;

filewrite.close();

ifstream infile;

infile.open("file.txt");

cout << "File read" << endl;

infile >> fileData;

cout << fileData << endl;

infile >> fileData;

cout << fileData << endl;

infile.close();

}

//main function

int main() {

int a = 100;

int b = 200;

userInteract();

pointerTest();

//swapPassByReference(&a, &b);

cout<<"Now a ="<<a<<"and b = "<<b<<endl;

selection();

switchCase();

fileOPerations();

//baseShape baseShape(0, 0));

derivedRectangle rec(10,7);

derivedTriangle tri(10,5);

cout<<rec.findArea();

//baseShape = rec;

//baseShape.findArea();

//baseShape = tri;

cout<<tri.findArea();

//cout<<baseShape.findArea();

return 0;

}

SAMPLE RUN :