Create three separate files for this code: 1. Computer.h holds the class' declaration 2. Computer.cpp holds the class' functions' definitions 3. Main.cpp holds the test code (i.e. the main function)

Question

#include <iostream>

#include <string>

using namespace std;

class Computer {

private:

int year;

string model;

string purpose;

public:

Computer(int y, string m, string m2) {

year = y;

model = m;

purpose = m2;

}

~Computer() {

cout << "Removed from memory" << endl;

}

void setYear(int y) {

year = y;

}

int getYear() {

return year;

}

const string& getModel() {

return model;

}

void setModel(const string m) {

model = m;

}

const string getPurpose() {

return purpose;

}

void setPurpose(string p) {

this->purpose = p;

}

};

int main() {

// test code to make sure the class works as expected

Computer c1;

Computer c2(1901, "non-default1");

Computer c3(1902, "non-default2", "purpose2");

c1.setYear(1900);

c1.setModel("model1");

c1.setPurpose("purpose1");

cout << c1.getYear() << endl;

cout << c1.getModel() << endl;

cout << c1.getPurpose() << endl;

cout << c2.getYear() << endl;

cout << c2.getModel() << endl;

cout << c2.getPurpose() << endl;

cout << c3.getYear() << endl;

cout << c3.getModel() << endl;

cout << c3.getPurpose() << endl;

return 0;

}

Answer 1

Computer.h should contain the field declarations and method signatures, e.g.

class Computer {

private:

int year;

...

public:

Computer (int y, string m, string m2);

~Computer();

...

Computer.cpp should contain the method bodies:

Computer::Computer (int y, string m, string m2) {

year = y;

...

}

...

main.cpp should contain the main method, unchanged from your example:

int main() {

...

}