C Sharp

ARRAY

using System;

namespace Arrays
{
class Arrays
{
public static void PrintArray(int[] myInts)
{
for(int i = 0; i <>

public static string[] GetStringArray()
{
string[] theStrings = {"Hello", "from", "GetStringArray"};
return theStrings;
}

public static int Main(string[] args)
{
#region Array declarations

// A string array containing 10 elements {0, 1, ...,9}.
string[] booksOnCOM;
booksOnCOM = new string[10];

// A 2 item string array, numbered {0, 1}
string[] booksOnPL1 = new string[2];

// 100 item string array, numbered {0, 1, ..., 99}
string[] booksOnDotNet = new string[100];

// The size of this array will automatically be set to 4.
// Note the lack of the 'new' keyword.
int[] ages = {20, 22, 23, 0};

// Need 'new' keyword when you define a fixed size array.
// Uncomment to trigger error.
// int[4] ages = {30, 54, 4, 10}; // Error!
#endregion

Console.WriteLine("***** Array as Parameter *****");
PrintArray(ages);

Console.WriteLine("\n***** Array as return value *****");
string[] strs = GetStringArray();
foreach(string s in strs)
Console.WriteLine(s);

Console.WriteLine("\n***** A rectangular MD array *****\n");
int[,] myMatrix;
myMatrix = new int[6,6];

// Populate (6 * 6) array.
for(int i = 0; i < j =" 0;">

// Show (6 * 6) array.
for(int i = 0; i < j =" 0;">

Console.WriteLine("\n***** A jagged MD array *****\n");
int[][] myJagArray = new int[5][];

// Create the jagged array.
for (int i = 0; i < i =" 0;" j =" 0;">

// Initialize items at startup or...
Console.WriteLine("\n***** Created array of strings *****");
string[] firstNames =
new string[5]{"Steve", "Gina", "Swallow", "Baldy", "Gunner"};

// ...go member by member.
/*
string[] firstNames = new string[4];
firstNames[0] = "Steve";
firstNames[1] = "Gina";
firstNames[2] = "Swallow";
firstNames[3] = "Baldy";
firstNames[4] = "Gunner";
*/

// Print out names in declared order.
for(int i = 0; i <>

// ... and print them.
Console.WriteLine("\n\n***** Here is the array once reversed *****");
for(int i = 0; i <>

// Clear out all but the final member.
Console.WriteLine("***** Cleared out all but young Gunner *****");
Array.Clear(firstNames, 1, 4);
for(int i = 0; i <>