Beginning C# 3.0

8.2. Arrays are Objects

Unlike in some other programming languages, arrays in C# are objects. This means each array object has a set of properties and methods that you can use with it. The code in Listing 8-1 presents a partial list of some of the properties and methods available through the System.Array class.

Table 8-1. Table 8-1

Example	Description
System.Array.BinarySearch(count, target)	Performs a binary search on a sorted, one-dimensional array named count looking for target.
System.Array.Clear(count, start, count.Length)	Clears value type arrays from element start through element Length to 0. Reference arrays are cleared to null.
System.Array.Copy(Souce, Dest, Length);	Copies Length elements from the Source array to the Dest array.
System.Array.IndexOf(count, val)	Returns the index in the count array where the first occurrence of val is found.
System.Array.LastIndexOf(count, val)	Returns the index in the count array where the last occurrence of val is found.
System.Array.Sort(count)	Sorts a one-dimensional array named count into ascending order.
System.Array.Reverse(count)	Reverses the current values of a one-dimensional array named count. Note: if you call Sort() and then Reverse(), it puts the array into descending order.
count.Rank	Returns the number of dimensions for the array named count.
count.GetUpperBound(val)	Returns the highest index number for dimension val for the count array. For example, if the definition for an array named test is as follows: int[,] test = new int[5,10]; the ...