I need help!

[starbucks]

I'm trying to create classes and put them in a menu. Why isn't this working?

#include <iostream>
#include <stdlib.h>
#include <math.h>

using namespace std;

int main(){
int choice;
cout << "Choose numbers from 1-5 to select your option: " << endl;
cout << "[1]: Square" << endl;
cout << "[2]: Rectangle" << endl;
cout << "[3]: Circle" << endl;
cout << "[4]: Traingle" << endl;
cout << "[5]: EXIT" << endl;

cin >> choice;
}

switch(choice)
{
case 1:
class CSquare {
int x, y;
public:
void set_values (int,int);
int area () {return (x*y);}
int per () {return (x*y);}
};

void CSquare::set_values (int a, int b) {
x = a;
y = b;
}

int main4() {
CSquare sq;
int a;
cout << "Enter the lenght of the square: ";
cin >> a;
cout << endl;
sq.set_values (a,2);
cout << "Area Square: " << sq.area() << endl;
sq.set_values (a,4);
cout << "Perimeter Square: " << sq.per() << endl;
return 0;
}
break;

case 2:
class CRectangle{
int f, g;
public:
void set_values (int,int);
int area () {return (f*g);}
int per () {return 2*(f*g);}
};

void CRectangle::set_values (int q, int p) {
f = q;
g = p;
}

int main1() {
CRectangle rect;
int a,b;
cout << "Enter the Lenght of the Rectangle: ";
cin >> a;
cout << "Enter the Width of the Rectangle: ";
cin >> b;
cout << endl;
rect.set_values (a,b);
cout << "Area Rectangle: " << rect.area() << endl;
rect.set_values (a,b);
cout << "Perimeter Rectangle: " << rect.per() << endl;
return 0;
}
break;

case 3:
class CCircle {
float r, d;
public:
void set_values (int,int);
int cir () {return (3.14159*d);}
int diameter () {return (2*r);}
};

void CCircle::set_values (int i, int j) {
r = i;
d = j;
}

int main2() {
CCircle cir;
float a,b;
cout << "Enter the Diameter of the Circle: ";
cin >> a;
cout << "Enter the Radius of the Circle: ";
cin >> b;
cout << endl;
cir.set_values (3.14159,a);
cout << "Circumference Circle: " << cir.cir() << endl;
cir.set_values (2,b);
cout << "Diameter: " << cir.diameter() << endl;
return 0;
}
break;
default:
cout << "END";
break;

}

[Peter87]

The indentation is gone so it's a bit hard to see what is going on but you can't have switches outside functions.

[Peter87]

The indentation is gone so it's hard to see what is going on but you can't have switches outside of functions.

[coder777]

Both functions and classes are declared/implemented outside of any functions.

Inside a function you create variables and call functions and do the math.

[starbucks]

How can i do this please?

[blackcoder41]

#include <iostream>
#include <stdlib.h>
#include <math.h>

using namespace std;

class CSquare
{
    int x, y;
public:
    void set_values (int,int);
    int area ()
    {
        return (x*y);
    }
    int per ()
    {
        return (x*y);
    }
};

void CSquare::set_values (int a, int b)
{
    x = a;
    y = b;
}

int main4()
{
    CSquare sq;
    int a;
    cout << "Enter the lenght of the square: ";
    cin >> a;
    cout << endl;
    sq.set_values (a,2);
    cout << "Area Square: " << sq.area() << endl;
    sq.set_values (a,4);
    cout << "Perimeter Square: " << sq.per() << endl;
    return 0;
}

class CRectangle
{
    int f, g;
public:
    void set_values (int,int);
    int area ()
    {
        return (f*g);
    }
    int per ()
    {
        return 2*(f*g);
    }
};

void CRectangle::set_values (int q, int p)
{
    f = q;
    g = p;
}

int main1()
{
    CRectangle rect;
    int a,b;
    cout << "Enter the Lenght of the Rectangle: ";
    cin >> a;
    cout << "Enter the Width of the Rectangle: ";
    cin >> b;
    cout << endl;
    rect.set_values (a,b);
    cout << "Area Rectangle: " << rect.area() << endl;
    rect.set_values (a,b);
    cout << "Perimeter Rectangle: " << rect.per() << endl;
    return 0;
}

class CCircle
{
    float r, d;
public:
    void set_values (int,int);
    int cir ()
    {
        return (3.14159*d);
    }
    int diameter ()
    {
        return (2*r);
    }
};

void CCircle::set_values (int i, int j)
{
    r = i;
    d = j;
}

int main2()
{
    CCircle cir;
    float a,b;
    cout << "Enter the Diameter of the Circle: ";
    cin >> a;
    cout << "Enter the Radius of the Circle: ";
    cin >> b;
    cout << endl;
    cir.set_values (3.14159,a);
    cout << "Circumference Circle: " << cir.cir() << endl;
    cir.set_values (2,b);
    cout << "Diameter: " << cir.diameter() << endl;
    return 0;
}
int main()
{
    int choice;
    cout << "Choose numbers from 1-5 to select your option: " << endl;
    cout << "[1]: Square" << endl;
    cout << "[2]: Rectangle" << endl;
    cout << "[3]: Circle" << endl;
    cout << "[4]: Traingle" << endl;
    cout << "[5]: EXIT" << endl;

    cin >> choice;

    switch(choice)
    {
    case 1:
        main4();
        break;
    case 2:
        main1();
        break;

    case 3:
        main2();
        break;
    default:
        cout << "END";
        break;

    }
}

[starbucks]

Thanks VERY VERY MUCH!! :)