static void Main()
{
decimal[] prices = new decimal[2];
prices[0] = 36M;
prices[1] = 34M;
int[] items = new int[] { 4, 5 };
decimal totalPrice = prices[0] * items[0] + prices[1] * items[1];
Console.WriteLine("Total price is {0:C}", totalPrice);
// Multidimensional array
string[,] multi = new string[3, 5];
for (int i = 0; i < multi.GetLength(0); i++)
{
for (int j = 0; j < multi.GetLength(1); j++)
{
var s = String.Format("[{0},{1}]", i, j);
multi[i, j] = s;
Console.Write(multi[i, j]);
}
Console.WriteLine();
}
//Proving reference type
Console.WriteLine("the price is {0}", prices[0]);
decimal[] new_prices = prices;
new_prices[0] = 356M;
Console.WriteLine("the price is {0}", prices[0]);
//
int[] grades = { 1, 2, 3 };
Grades grader = new Grades(grades);
Console.WriteLine("The insides of class {0}", grader.grades[0]);
// Change the initital array
grades[0] = 100;
Console.WriteLine("The insides of class {0}", grader.grades[0]);
Console.WriteLine("=> Working with System.Array.");
// Initialize items at startup.
string[] gothicBands = { "Tones on Tail", "Bauhaus", "Sisters of Mercy" };
// Print out names in declared order.
Console.WriteLine("-> Here is the array:");
for (int i = 0; i < gothicBands.Length; i++)
{
// Print a name.
Console.Write(gothicBands[i] + ", ");
}
Console.WriteLine("\n");
// Reverse them...
Array.Reverse(gothicBands); // Note use of static method
Console.WriteLine("-> The reversed array");
// ... and print them.
for (int i = 0; i < gothicBands.Length; i++)
{
// Print a name.
Console.Write(gothicBands[i] + ", ");
}
Console.WriteLine("\n");
// Clear out all but the final member.
Console.WriteLine("-> Cleared out all but one...");
Array.Clear(gothicBands, 1, 2);
for (int i = 0; i < gothicBands.Length; i++)
{
// Print a name.
Console.Write(gothicBands[i] + ", ");
}
Console.WriteLine();
}
static void Main()
{
// One dimensional array
decimal[] prices = new decimal[2];
prices[0] = 36M;
prices[1] = 34M;
// Shorter syntax
int[] items = new int[] { 4, 5 };
decimal totalPrice = prices[0] * items[0] + prices[1] * items[1];
Console.WriteLine("Total price is {0:C}", totalPrice);
// short init syntax
int[] ints = { 1, 2, 3, 4 };
// Multidimensional array
string[,] multi = new string[3, 5];
for (int i = 0; i < multi.GetLength(0); i++)
{
for (int j = 0; j < multi.GetLength(1); j++)
{
var s = String.Format("[{0},{1}]", i, j);
multi[i, j] = s;
Console.Write(multi[i, j]);
}
Console.WriteLine();
}
// Jagged array
// The inner dimensions aren’t specified in the declaration.
// Unlike a rectangular array, each inner array can be an arbitrary length.
// Each inner array is implicitly initialized to null rather than an empty array.
int[][] matrix = new int[10][];
for (int i = 0; i < matrix.Length; i++)
{
matrix[i] = new int[3]; // Create inner array
for (int j = 0; j < matrix[i].Length; j++)
{
matrix[i][j] = i * 3 + j;
}
}
// Proving reference type
Console.WriteLine("the price is {0}", prices[0]);
decimal[] new_prices = prices;
new_prices[0] = 356M;
Console.WriteLine("the price is {0}", prices[0]);
int[] grades = { 1, 2, 3 };
Grades grader = new Grades(grades);
Console.WriteLine("The insides of class {0}", grader.grades[0]);
// Change the initital array
grades[0] = 100;
Console.WriteLine("The insides of class {0}", grader.grades[0]);
Console.WriteLine("=> Working with System.Array.");
// Initialize items at startup.
string[] gothicBands = { "Tones on Tail", "Bauhaus", "Sisters of Mercy" };
// Print out names in declared order.
Console.WriteLine("-> Here is the array:");
string tmplt = "{0}, ";
for (int i = 0; i < gothicBands.Length; i++)
{
// Print a name.
Console.Write(tmplt, gothicBands[i]);
}
Console.WriteLine("\n");
// foreach enumeration
foreach (string item in gothicBands)
{
Console.Write(tmplt, item);
}
Console.WriteLine("\n");
// and with extension method
Array.ForEach(gothicBands, band => Console.Write(tmplt, band));
Console.WriteLine("\n");
// Searching
string match = Array.Find(gothicBands, band => band.Contains("B"));
Console.WriteLine(match);
// Reverse them...
Array.Reverse(gothicBands); // Note use of static method
Console.WriteLine("-> The reversed array");
// ... and print them.
for (int i = 0; i < gothicBands.Length; i++)
{
// Print a name.
Console.Write(gothicBands[i] + ", ");
}
Console.WriteLine("\n");
// Clear out all but the final member.
Console.WriteLine("-> Cleared out all but one...");
Array.Clear(gothicBands, 1, 2);
for (int i = 0; i < gothicBands.Length; i++)
{
// Print a name.
Console.Write(gothicBands[i] + ", ");
}
Console.WriteLine();
}
