LINQ C# Book

public void Linq52()
{
int[] numbersA = { 0, 2, 4, 5, 6, 8, 9 };
int[] numbersB = { 1, 3, 5, 7, 8 };

IEnumerable aOnlyNumbers = numbersA.Except(numbersB);

Console.WriteLine("Numbers in first array but not second array:");
foreach (var n in aOnlyNumbers)
{
Console.WriteLine(n);
}
}
Result

Numbers in first array but not second array:
0
2
4
6
9