Set operation on array - CSharp Language Basics

CSharp examples for Language Basics:Array

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Description

Set operation on array

Demo Code

using System;//from  w w  w .j av a  2 s.c o  m
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Net.Http;
using System.Threading.Tasks;
using static System.Console;
using static System.Diagnostics.Process;
class Program
{
   static void Main(string[] args)
   {
      var test1 = new string[]{ "A", "B", "C", "D" };
      var test2 = new string[]{ "Jack", "S", "X", "Jack", "Z" };
      var test3 = new string[]{ "D", "Jack", "Jack", "G", "Conor" };
      Output(test1, "Test 1");
      Output(test2, "Test 2");
      Output(test3, "Test 3");
      Output(test2.Distinct(), "test2.Distinct(): removes duplicates");
      Output(test2.Union(test3),"test2.Union(test3): combines and removes duplicates");
      Output(test2.Concat(test3),"test2.Concat(test3): combines but leaves duplicates");
      Output(test2.Intersect(test3),"test2.Intersect(test3): items that are in both sequences");
      Output(test2.Except(test3),"test2.Except(test3): removes items from the first sequence that are in the second sequence");
      Output(test1.Zip(test2,(c1, c2) => $"{c1} matched with {c2}"),"test1.Zip(test2, (c1, c2) => $\"{c1} matched with {c2}\")" +": matches items based on position in the sequence");
   }
   private static void Output(IEnumerable<string> test, string description = "")
   {
      if (!string.IsNullOrEmpty(description))
      {
         WriteLine(description);
      }
      Write(" ");
      WriteLine(string.Join(", ", test.ToArray()));
   }
}

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