Question

How to get the first N words from a string in C#

Answer 1

using System;

class Program
{
    public static string FirstNWords(string s, int n) {
        for (int i = 0; i < s.Length; i++) {
            if (s[i] == ' ') {
                n--;
            }
            if (n == 0) {
                return s.Substring(0, i);
            }
        }
        return "";
	}
    static void Main() {
        string s = "c# c++ java c python";
        
        int N = 3;
        string first3 = FirstNWords(s, N);
        
        Console.Write(first3);
    }
}




/*
run:

c# c++ java

*/

 

70+ SQL courses for beginners and professionals

Answer 2

using System;
using System.Linq;

class Program
{
    static void Main() {
        string s = "c# c++ java c python";
        int N = 3;
        
        string[] words = s.Split();

        string first3 = string.Join(" ", words.Take(N));
        
        Console.Write(first3);
    }
}




/*
run:

c# c++ java

*/

 

70+ SQL courses for beginners and professionals