Group employees by department — C# Programming

Problem

Group sample employees by department and print counts.

Hints

employees.GroupBy(e => e.Dept)

Your practice code

Ready — edit the code above and click Run.

Solution

using System;
using System.Linq;

class Program
{
    static void Main()
    {
        var employees = new[] {
            new { Name = "A", Dept = "IT" },
            new { Name = "B", Dept = "HR" },
            new { Name = "C", Dept = "IT" }
        };
        var groups = employees.GroupBy(e => e.Dept);
        foreach (var g in groups)
            Console.WriteLine($"{g.Key}: {g.Count()}");
    }
}

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Explanation

GroupBy mirrors SQL GROUP BY—essential for enterprise .NET roles.