Distinct

In this chapter you will learn:

How to use Distinct operator
Use Linq Distinct to get the distinct value in an array
Distinct characters in an array

Get to know Distinct operator

Distinct returns the input sequence, stripped of duplicates.

using System;//from j a v  a2  s  .co m
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;


public class MainClass{

   public static void Main(string[] args){   
         String[] First = { "One", "Two", "Two", "Three", "Four" };
         String[] Second = { "Three", "Four", "Five", "Six" };

         var ShowDistinct = First.Distinct();

         // Display the output.
         Console.WriteLine("Distinct:");
         foreach (String ThisElement in ShowDistinct)
            Console.WriteLine(ThisElement);

   }
}

Distinct values in an array

using System;/*from   j  av a2 s. c  om*/
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.Linq;

public class MainClass{
   public static void Main(){
            int[] numbers = {1, 1, 2, 3, 3};
            Console.Write(numbers.Distinct());
   }
}

Distinct characters in an array

using System;/* j av a2  s  .c  om*/
using System.Collections;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        char[] distinctLetters = "HelloWorld".Distinct().ToArray();
        string s = new string(distinctLetters);
        Console.WriteLine(s);
    }
}

The output:

Next chapter...

What you will learn in the next chapter: