Use Where operator to check value and index for a string array in CSharp

using System;//  w ww . j a  v a 2 s. co m
using System.Linq;
using System.Collections;
using System.Collections.Generic;
public class MainClass {
    public static void Main() {
        string[] presidents = {"Ad", "Ar", "Bu", "Bu", "Ca", "Cl"};

        IEnumerable<string> sequence = presidents.Where((p, i) => (i & 1) == 1);

        foreach (string s in sequence)
            Console.WriteLine("{0}", s);

    }
}