using System;

public class Program

{

    public static void Main()

    {

        int[] iArr = new int[] {2, 5, 3, 8, 9, -1, 4};

        // Comment out the previous line and uncomment the following line

        // int[] iArr = new int[] {}; 

        // Questions:

        // 1. Why do you get a run-time error?

        // 2. How can you avoid it when an empty array is given?

        if (iArr.Length == 0) 

        {

            Console.Write("Array is empty!");

        } 

        int index = 0, iMax = iArr[index];

        for (index = 1; index < iArr.Length; index++)

        {

            if (iArr[index] > iMax) iMax = iArr[index];

        }

        Console.WriteLine("The maximum is {0}.", iMax);

    }

}