// By using LINQ
public static List<IntegerNumbers> DivisibleBy21usingLINQ(IntegerNumbers[] arr)
{
var result = new List<IntegerNumbers>();
foreach (var item in from m in arr where m.N % 21 == 0 select m) result.Add(item);
return result;
}
public static void Main()
{
while (true)
{
// Creates and prints some array of integers
Console.CursorVisible = false;
Console.WriteLine("Array of random integers:");
var numbers = new IntegerNumbers[25];
Console.ForegroundColor = ConsoleColor.Yellow;
var generator = new Random();
for (int i = 0; i < numbers.Length; i++)
{
numbers[i] = new IntegerNumbers(generator.Next(10, 100));
Console.Write(numbers[i].N + " ");
}
Console.ResetColor();
// Prints all numbers that are divisible by 7 and 3 by using Lambda and LINQ
Print(IntegerNumbers.DivisibleBy21usingLambda(numbers), "Lambda");
Print(IntegerNumbers.DivisibleBy21usingLINQ(numbers), "LINQ");
Console.WriteLine("\n\n\nPress any key to stop the test...");
Thread.Sleep(500);
// Stops the loop
if (Console.KeyAvailable)
{
Console.ReadKey(false);
Console.Write("\b \b");
break;
}
Console.Clear();
}
}
// By using Lambda expressions
public static List<IntegerNumbers> DivisibleBy21usingLambda(IntegerNumbers[] arr)
{
var result = new List<IntegerNumbers>();
foreach (var item in arr.Where(m => m.N % 21 == 0)) result.Add(item);
return result;
}
