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==Additional Array Methods==

<source lang="csharp">using System;
class ProgrammingLanguages
{
static void Main()
{
string[] languages = new string[]{"C#", "COBOL", "Java","C++", "Visual Basic", "Pascal", "Fortran", "Lisp", "J#"};
System.Array.Sort(languages);
String searchString = "COBOL";
int index = System.Array.BinarySearch(languages, searchString);
System.Console.WriteLine("The wave of the future, {0}, is at index {1}.", searchString, index);
System.Console.WriteLine("{0,-20}\t{1,-20}", languages[0], languages[languages.Length - 1]);
System.Array.Reverse(languages);
System.Console.WriteLine("{0,-20}\t{1,-20}", languages[0], languages[languages.Length - 1]);
System.Array.Clear(languages, 0, languages.Length);
System.Console.WriteLine("{0,-20}\t{1,-20}", languages[0], languages[languages.Length - 1]);
System.Console.WriteLine("After clearing, the array size is: {0}", languages.Length);
}
}</source>

==Reverse an array==

<source lang="csharp">using System;

class MainClass {
public static void Main() {
int i,j;
int[] nums1 = new int[10];
int[] nums2 = new int[10];

for(i=0; i < nums1.Length; i++)
nums1[i] = i*i;

Console.Write("Original contents: ");
for(i=0; i < nums2.Length; i++)
Console.Write(nums1[i] + " ");

Console.WriteLine();

Console.Write("reverse copy nums1 to nums2");
if(nums2.Length >= nums1.Length) // make sure nums2 is long enough
for(i=0, j=nums1.Length-1; i < nums1.Length; i++, j--)
nums2[j] = nums1[i];

Console.Write("Reversed contents: ");
for(i=0; i < nums2.Length; i++)
Console.Write(nums2[i] + " ");

Console.WriteLine();
}
}</source>
<pre class=codeResult>Original contents: 0 1 4 9 16 25 36 49 64 81
reverse copy nums1 to nums2Reversed contents: 81 64 49 36 25 16 9 4 1 0</pre>

==Reverse an array in a range==

<source lang="csharp">using System;

class MainClass {
public static void Main() {
int[] nums = { 1, 2, 3, 4, 5 };

Console.Write("Original order: ");
foreach(int i in nums)
Console.Write(i + " ");
Console.WriteLine();

// Reverse a range.
Array.Reverse(nums, 1, 3);

// Display reversed order.
Console.Write("Range reversed: ");
foreach(int i in nums)
Console.Write(i + " ");
Console.WriteLine();

}
}</source>
<pre class=codeResult>Original order: 1 2 3 4 5
Range reversed: 1 4 3 2 5</pre>

==Reverse an array using Array.Reverse==

<source lang="csharp">using System;

class MainClass {
public static void Main() {
int[] nums = { 1, 2, 3, 4, 5 };

Console.Write("Original order: ");
foreach(int i in nums)
Console.Write(i + " ");
Console.WriteLine();

Array.Reverse(nums);

Console.Write("Reversed order: ");
foreach(int i in nums)
Console.Write(i + " ");
Console.WriteLine();

}
}</source>
<pre class=codeResult>Original order: 1 2 3 4 5
Reversed order: 5 4 3 2 1</pre>

==Use the Reverse() method to reverse the elements in charArray==

<source lang="csharp">using System;
class MainClass
{
public static void Main()
{
char[] charArray = {"w", "e", "l", "c", "o", "m", "e"};
Array.Sort(charArray); // sort the elements
Array.Reverse(charArray);
Console.WriteLine("Reversed charArray:");
for (int i = 0; i < charArray.Length; i++)
{
Console.WriteLine("charArray[" + i + "] = " + charArray[i]);
}
}
}</source>
<pre class=codeResult>Reversed charArray:
charArray[0] = w
charArray[1] = o
charArray[2] = m
charArray[3] = l
charArray[4] = e
charArray[5] = e
charArray[6] = c</pre>

==Use the Reverse() method to reverse the elements in intArray==

<source lang="csharp">using System;
class MainClass
{
public static void Main()
{
int[] intArray = {5, 2, 3, 1, 6, 9, 7, 14, 25};
Array.Sort(intArray);

Array.Reverse(intArray);
Console.WriteLine("Reversed intArray:");
for (int i = 0; i < intArray.Length; i++)
{
Console.WriteLine("intArray[" + i + "] = " +
intArray[i]);
}
}
}</source>
<pre class=codeResult>Reversed intArray:
intArray[0] = 25
intArray[1] = 14
intArray[2] = 9
intArray[3] = 7
intArray[4] = 6
intArray[5] = 5
intArray[6] = 3
intArray[7] = 2
intArray[8] = 1</pre>

==Use the Reverse() method to reverse the elements in stringArray==

<source lang="csharp">using System;
class MainClass
{
public static void Main()
{
string[] stringArray = {"t", "i", "a", "test", "abc123", "abc345"};
Array.Sort(stringArray);

Array.Reverse(stringArray);
Console.WriteLine("Reversed stringArray:");
for (int i = 0; i < stringArray.Length; i++)
{
Console.WriteLine("stringArray[" + i + "] = " + stringArray[i]);
}
}
}</source>
<pre class=codeResult>Reversed stringArray:
stringArray[0] = test
stringArray[1] = t
stringArray[2] = i
stringArray[3] = abc345
stringArray[4] = abc123
stringArray[5] = a</pre>

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