Storing a fixed set of values in an array

An array is the simplest way to keep several values together. It has a fixed length chosen when you create it.

Creating and reading an array

string[] days = new string[3];
days[0] = "Monday";
days[1] = "Tuesday";
days[2] = "Wednesday";

for (int i = 0; i < days.Length; i++)
{
    outputLabel.Text += days[i] + "<br>";
}

Two things to remember

• Numbering starts at zero, so a three item array runs from index zero to index two.
• Asking for an index outside the range throws an exception, which is the most common array mistake.

For looking values up by a name rather than a position, see the dictionary lesson.