LongCount

using System;/*  j  a  v  a2 s.co  m*/
using System.Linq;
using System.Collections;
using System.Collections.Generic;

public class MainClass {
    public static void Main() {
        string[] fruits = { "apple", "banana", "mango", 
                    "orange", "passionfruit", "java2s.com" };
        
        long count = fruits.LongCount();
        Console.WriteLine("There are {0} fruits in the collection.", count);
    }
}

using System;/*from   j a v a 2s .  co m*/
using System.Linq;
public class MainClass {
    public static void Main() {
        int[] intArray= { 1,2,3,4,5,6,7,8,9};
        
        long count = fruits.LongCount(n => n > 1 && n < 4);
        Console.WriteLine(count);
    }
}