C# / .NET - default array values

In this article, we would like to show you what are default array values initialized by the compiler when you don’t assign values to array elements in C#.

Quick solution:

DatatypeDefault value

Practical example

In this example, we create one-element, not initialized arrays to see what is the default value for each type.

using System;

public class Program
{
    public static void Main()
    {
        int[] array1 = new int[1];
        double[] array2 = new double[1];
        bool[] array3 = new bool[1];

        Console.WriteLine("int: " + array1[0]);
        Console.WriteLine("double: " + array2[0]);
        Console.WriteLine("bool: " + array3[0]);
    }
}

Output:

int: 0
double: 0
bool: False

References

1. Default values of C# types - C# reference | Microsoft Docs