Question

Part 4: Creating a Torus Class

Write a code in C++ that does the following

Add comments// for understanding please

Specifications:

A. Write a class declaration named Torus to find the surface area and volume of a torus.

B. Define appropriate member variables.

C. Define appropriate set (mutator) and get (accessor) functions.

D. Use appropriate code to ask the user for input.

E. Use appropriate member functions to “set” and store the input.

F. Use appropriate member functions to “get” and display the output.

$C:\Qt\Tools QtCreator bin\qtcr Enter R (BIG R): -4 Enter r (small r): 3 Invalid value for bigR! C:\Qt\Tools QtCreator bin\qtc$

Answer 1

C++ Code:

#include <iostream>

using namespace std;

class Torus{

private:

int BigR,SmallR;

public:

void setRadius(int BgR,int SmR) {

BigR=BgR;

SmallR=SmR;

}

void get() {

cout<<"Torus Data\n--------------------"<<endl;

double sArea=(2*3.14*BigR)*(2*3.14*SmallR);

double volume=(3.14*SmallR*SmallR)*(2*3.14*BigR);

cout<<"BigR = "<<BigR<<endl;

cout<<"SmallR = "<<SmallR<<endl;

cout<<"Surface Area = "<<sArea<<"sq Units"<<endl;

cout<<"Volume = "<<volume<<" cubic Units";

}

};

int main() {

Torus tor;

int sRadius;

int bRadius;

cout<<"Enter R(Big Radius): ";

cin>>bRadius;

cout<<"Enter r(Small Radius): ";

cin>>sRadius;

if(sRadius<0){

cout<<"Invalid Value for smallR!";

}

else if(bRadius<0)

cout<<"Invalid Value for bigR!";

else{

tor.setRadius(bRadius,sRadius);

tor.get();

}

return 0;

}

clang version 7.0.0-3-ubuntu0.18.04.1 (tags/RELEASE_700/final) ? clang++-7 pthread -o main main.cpp } ./main Enter R (Big Radius): -4 Enter r(Small Radius): 3 Invalid Value for bigR!!

clang version 7.0.0-3-ubuntu0.18.04.1 (tags/RELEASE_700/final) } clang++-7 pthread -o main main.cpp } ./main Enter R (Big Radius): 4 Enter r(Small Radius): -2 Invalid Value for smallr!

clang version 7.0.0-3-ubuntu0.18.04.1 (tags/RELEASE_700/firal) ? clang++-7 pthread -o main main.cpp } ./main Enter R (Big Radius): 10 Enter r(Small Radius) : 3 Torus Data BigR = 10 SmallR = 3 Surface Area = 1183.153g Units Volume = 1774.73 cubic Units

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