How Do I Sort String Array By Length Of Strings In C#

Question

1.00/5 (1 vote)

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C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Name
{
    class LCS
    {
        int n;
        static void Main()
        {
            LCS obj = new LCS();
            obj.arrays();
            Console.ReadLine();
        }
        public void arrays()
        {
            Console.WriteLine("Enter how many strings you want to enter:-");
            n = Int32.Parse(Console.ReadLine());
            List<string> sampleList = new List<string>();
            Console.WriteLine("Enter  " + n + " strings");
            for (int i = 0; i < n; i++)
            {
                sampleList.Add(Console.ReadLine());
            }     
    }
}

Posted 2-Nov-15 22:15pm

Prasad Billupati

Updated 5-Sep-19 21:09pm

PANKAJMAURYA

v2

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Comments

Tomas Takac 3-Nov-15 4:29am

There are several ways, what did you try?

3 solutions

Solution 4

using System;
using static System.Console;
using static System.Convert;

namespace Program
{
    class arrexp
    {
        static void Main(string[] args)
        {
            int size;
            WriteLine("Enter size");
            size = ToInt32(ReadLine());

      
            string[] str = new string[size];
     
            int[] b = new int[size];
            WriteLine("Enter the words");
            for (int i = 0; i < size; i++)
            {
                str[i] = ReadLine();
            }
            for (int i = 0; i < size; i++)
            {
                for (int k = i + 1; k < size; k++)
                {
                    if(str[i].Length>str[k].Length)
                    {
                        string str1 = " ";
                        str1 = str[i];
                        str[i] = str[k];
                        str[k] = str1;
                    }
                    

                }
            }
            foreach(string x in str)
            {
                WriteLine(x);
            }
        }
    }
}

Posted 5-Sep-19 0:19am

Member 14579196

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Thomas Daniels · Accepted Answer · 2015-11-02T22:30:00

Solution 1

You can use LINQ for that:

C#

sampleList = sampleList.OrderBy(s => s.Length).ToList();

https://msdn.microsoft.com/en-us/library/vstudio/bb534966%28v=vs.100%29.aspx[^]

Posted 2-Nov-15 22:30pm

Thomas Daniels

Comments

Leo Chapiro 3-Nov-15 4:35am

n1 (Nice one), +5 :)

Thomas Daniels 3-Nov-15 4:36am

Thank you!

Tomas Takac · Accepted Answer · 2015-11-02T23:28:00

Solution 2

Like I said there are several ways to do this. And of course ProgramFOX's solution with LINQ is correct. So here is an alternative using List.Sort method[^]:

C#

sampleList.Sort((x,y) => x.Length - y.Length);

The benefit is you are not creating a new instance of List.

Posted 2-Nov-15 23:28pm

Tomas Takac

Comments

BillWoodruff 3-Nov-15 11:49am

+5

George Swan 6-Sep-19 3:34am

Excellent answer. I was so obsessed by Linq that I didn't think of your solution. And, come to think of it, there is also
sampleList.Sort((x, y) => x.Length.CompareTo(y.Length));