c# create array
// Define and Initialize
int[] arr = {1, 2, 3};
// Buuuut:
// Initial defining
int[] arr;
// This works
arr = new int[] {1, 2, 3};
// This will cause an error
// arr = {1, 2, 3};c# create array
// Define and Initialize
int[] arr = {1, 2, 3};
// Buuuut:
// Initial defining
int[] arr;
// This works
arr = new int[] {1, 2, 3};
// This will cause an error
// arr = {1, 2, 3};c# array
// ------------ How to initialize 1-dimensional Arrays? ------------ //
// 1º Method
int[] myArray = new int[];
myArray[0] = 2;
myArray[1] = 5;
myArray[2] = 9;
// 2º Method
int[] myArray = {2, 5, 9};
// 3º Method
int[] myArray = new int[]{2, 5, 9};
// ------------ How to initialize 2-dimensional Arrays? ------------ //
// Rectangular Array
int[,] myRetArray = { {8, 2}, {9, 4} }; // 2 rows and 2 columns
//OR
var myRetArray = new int[3, 5]; // 3 rows and 5 columns
myRetArray[0,1] = 12;
// Jagged Array
var myJagArray = new int[3][]; // 3 rows
myJagArray[0] = new int[2]; // The first row as 2 columns
myJagArray[1] = new int[6]; // The second row as 6 columns
myJagArray[2] = new int[4]; // The third row as 4 columns
// OR
var myJagArray = new int[3][]; // 3 rows
myJagArray[0] = new int[] {7, 8, 4, 6, 1}; // The first row as 5 columns
myJagArray[1] = new int[] {2, 6, 6}; // The second row as 3 columns
myJagArray[2] = new int[] {7, 12, 4, 9, 13, 10, 3}; // The third row as 7 columns
// OR
int[][] myJagArray = new int[][]
{
new int[] {1, 4, 3},
new int[] {9, 2, 3},
new int[] {2, 5, 9}
};
// -------- How to initialize 3 or more dimensional Arrays? -------- //
var myArray = new int[3, 5, 8]; // 3 rows, 5 columns and 8 cells thick
// -------------- How to creat an Array of Lists? ----------------- //
var my_list = new List<int>[] {
new List<int>() { 9, 2, 1, 2},
new List<int> { 6, 4, 1, 7},
new List<int> { 1, 8, 4, 3},
};
Console.WriteLine(my_list[0].ElementAt(0)); // You get "9"c# how to crete array
//you can apply arrays to any variable
//string array
string[] names = {"Guy", "Ryan", "Jim"};
//int array
int[] ages = {14, 16, 17, 19};
//double array
double[] timeRecord = {2.3, 5.6, 3.3};Copyright © 2021 Codeinu
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