Write an application that allows a user to select a country from a list box that contains the following seven options. After the user makes a selection, display the country's capital city.

Country

Capital Austria

Vienna Canada

Toronto England

London France

Paris Italy

Rome Mexico

Mexico City Spain

Madrid

Programming Language not stated;

But this application definitely requires a graphical user interface platform (so, I'll use Microsoft Visual C# - Winforms).

Controls to be used are.

1. Form

2. List box

I'll name the Form, Form1 and the list box, listbox1.

Explanation:

The code goes thus;

private void Form1_Load (object sender, System. EventArgs e)

{

//Load country into empty listbox

listbox1. Items. Add ("Austria");

listbox1. Items. Add ("Canada");

listbox1. Items. Add ("England");

listbox1. Items. Add ("France");

listbox1. Items. Add ("Italy");

listbox1. Items. Add ("Mexico");

listbox1. Items. Add ("Spain");

}

private void listbox1_SelectedIndexChanged (object sender, System. EventArgs e)

{

//Check if an item is really selected

if (listbox1. SelectedIndex > = 0)

{

//Index 0 represents 1st item that was added to the listbox and that's Austria

if (listbox1. SelectedIndex = =0)

{

MessageBox. Show ("Vienna");

}

else if (listbox1. SelectedIndex = = 1)

{

MessageBox. Show ("Toronto");

}

else if (listbox1. SelectedIndex = =2)

{

MessageBox. Show ("London");

}

else if (listbox1. SelectedIndex = = 3)

{

MessageBox. Show ("Paris");

}

else if (listbox1. SelectedIndex = =4)

{

MessageBox. Show ("Rome");

}

else if (listbox1. SelectedIndex = = 5)

{

MessageBox. Show ("Mexico City");

}

else if (listbox1. SelectedIndex = = 6)

{

MessageBox. Show ("Madrid");

}

}

else

{

MessageBox. Show ("No item selected");

}

}