C# Arrays
C# Arrays
Like other programming languages, array in C# is a group of similar types of elements that have contiguous memory location. In C#, array is an object of base type System.Array. In C#, array index starts from 0. We can store only fixed set of elements in C# array.
Advantages of C# Array
- Code Optimization (less code)
- Random Access
- Easy to traverse data
- Easy to manipulate data
- Easy to sort data etc.
Disadvantages of C# Array
- Fixed size
C# Array Types
There are 3 types of arrays in C# programming:
- Single Dimensional Array
- Multidimensional Array
- Jagged Array
C# Single Dimensional Array
To create single dimensional array, you need to use square brackets [] after the type.
You cannot place square brackets after the identifier.
int arr[] = new int[5];//compile time error
Let's see a simple example of C# array, where we are going to declare, initialize and traverse array.
using System;
public class ArrayExample
{
public static void Main(string[] args)
{
int[] arr = new int[5];//creating array
arr[0] = 10;//initializing array
arr[2] = 20;
arr[4] = 30;
//traversing array
for (int i = 0; i < arr.Length; i++)
{
Console.WriteLine(arr[i]);
}
}
}
Output:
10 0 20 0 30
