My project closes - any idea?

[plop442]

Hello,

I have a uni project to do. I've completed it but for some reason, when I run it in Visual Studio 2012, it closes at a certain point. I created it in CodeBlocks and it runs fine. The code is:




#include <iostream>

using namespace std;

int main()
{
int choice;
double length, width, area;

cout << "Choose one of the following:\n\n\n";
cout << "1. Calculate the area of a circle\n\n";
cout << "2. Calculate the area of a rectangle\n\n";
cout << "3. Calculate the area of a triangle\n\n";
cout << "4. Quit\n\n";
cout << "Enter your choices: 1-4\n\n";

cin >> choice;

if (choice == 1)
{
double r;
double area;
double pi = 3.14159;

cout << "What is the radius of the circle?";
cin >> r;
area = 3.14159*r*r;
cout << "The area of the circle is " << area;
}



else if (choice ==2)
{


cout << "What is the length of the rectangle?\n";
cin >> length;
cout << "What is the width of the rectangle?\n";
cin >> width;

area = length * width;
cout << "The area of the rectangle is " << area << endl;
}

else if (choice ==3)
{

double base, height;
double area;
cout << "What is the base of the triangle?\n";
cin >> base;
cout << "What is the height of the triangle?\n";
cin >> height;

area = base * height *5;
cout << "The area of the triangle is " << area << endl;
}

else
{


cout << "Wrong number entered!";
}

return 0;
}


When I run it in VS, and I press 1 and enter, it asks the radius of the circle. When I enter the radius of the circle and press enter, it closes. But in codeblocks it doesn't close. It's the same with other options (1,2,3,4) Any help would be appreciated.

[AbstractionAnon]

See the sticky here:
http://www.cplusplus.com/forum/beginner/1988/

PLEASE USE CODE TAGS (the <> formatting button) when posting code.
It makes it easier to read your code and also easier to respond to your post.
http://www.cplusplus.com/articles/jEywvCM9/
Hint: You can edit your post, highlight your code and press the <> formatting button.

[plop442]

Thanks a lot! I forgot about the system pause thing, ha!
Btw, do you know how to close the program when I press 4? I tried the Exit() thing and it says it's not declared...

[AbstractionAnon]

Use exit(), not Exit().
Be sure to include <cstdlib>

[LA48b7Xj]

You could just write return 0; to exit the program.