.NET Standard 2.0 .NET Framework 2.0
dotnet add package Nakov.IO.Cin --version
NuGet\Install-Package Nakov.IO.Cin -Version
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="Nakov.IO.Cin" Version="" />
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add Nakov.IO.Cin --version
#r "nuget: Nakov.IO.Cin,"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install Nakov.IO.Cin as a Cake Addin
#addin nuget:?package=Nakov.IO.Cin&version=

// Install Nakov.IO.Cin as a Cake Tool
#tool nuget:?package=Nakov.IO.Cin&version=

C++ style cin console-based input for C# developers

Nakov.IO.Cin is a console-based input parser for C#, which reads numbers and text in the C++ cin / cout / iostream style.

For example, in C++ we can read two integers using this code:

int x, y;
cin >> x >> y;

With Nakov.IO.Cin we can write the same code in C# like this:

int x = Cin.NextInt();
int y = Cin.NextInt();


Like in C++, the whitespace will be skipped so users can enter the input numbers on the same line, separated by spaces, or on separate lines.

Nakov.IO.Cin supports reading int, double, decimal and string tokens.


In this example we read two integers in C++:

int rows, cols;
cin >> rows >> cols;

In C# we can read two integers (using tuples) like this:

(int rows, int cols) = (Cin.NextInt(), Cin.NextInt());

Another C++ example:

#include <iostream>
using namespace std;
int main()
    int n;
    cin >> n;
    int* numbers = new int[n];
    for (int i = 0; i < n; i++)
        cin >> numbers[i];
    for (int i = 0; i < n; i++)
        cout << numbers[i] << ' ';

The corresponding C# code:

using System;
using Nakov.IO;
public class EnterNumbers
    static void Main()
        int n = Cin.NextInt();
        int[] numbers = new int[n];
        for (int i = 0; i < n; i++)
            numbers[i] = Cin.NextInt();
        for (int i = 0; i < n; i++)
            Console.Write(numbers[i] + " ");

More Detailed Example

This is a more-detailed example how to use the Nakov.IO.Cin class:

using System;
using Nakov.IO; // See

public class CinExample
    static void Main()
        Console.Write("Enter your name: ");
        string name = Console.ReadLine();

        Console.Write("Enter two integers x and y separated by whitespace: ");
        // cin >> x >> y;
        int x = Cin.NextInt();
        double y = Cin.NextDouble();

        Console.Write("Enter your age: ");
        int age = int.Parse(Console.ReadLine());

        Console.WriteLine("Name: {0}, Age: {1}", name, age);
        Console.WriteLine("x={0}, y={1}", x, y);

        Console.Write("Enter a positive integer number N: ");
        // cin >> n;
        int n = Cin.NextInt();

        Console.Write("Enter N decimal numbers separated by a space: ");
        decimal[] numbers = new decimal[n];
        for (int i = 0; i < n; i++)
            // cin >> numbers[i];
            numbers[i] = Cin.NextDecimal();

        Console.WriteLine("The numbers in ascending order: {0}",
            string.Join(' ', numbers));

        Console.Write("Enter two strings seperated by a space: ");
        // cin >> firstStr >> secondStr;
        string firstStr = Cin.NextToken();
        string secondStr = Cin.NextToken();
        Console.WriteLine("First str={0}", firstStr);
        Console.WriteLine("Second str={0}", secondStr);

This is a sample input and output from the above example:

Enter your name: Albert Einstein
Enter two integers x and y separated by whitespace:
Enter your age:         25
Name: Albert Einstein, Age: 25
x=10, y=20
Enter a positive integer number N:
Enter N decimal numbers separated by a space: 10  30 40

The numbers in ascending order: 10 20 30 40 50
Enter two strings seperated by a space:
        Visual                  Studio
First str=Visual
Second str=Studio

Note that input numbers and string tokens can be separated by single space, by a new line or by a sequence of white space characters.

More info

Learn more at:

Product Versions
.NET net5.0 net5.0-windows net6.0 net6.0-android net6.0-ios net6.0-maccatalyst net6.0-macos net6.0-tvos net6.0-windows net7.0 net7.0-android net7.0-ios net7.0-maccatalyst net7.0-macos net7.0-tvos net7.0-windows
.NET Core netcoreapp2.0 netcoreapp2.1 netcoreapp2.2 netcoreapp3.0 netcoreapp3.1
.NET Standard netstandard2.0 netstandard2.1
.NET Framework net20 net35 net40 net403 net45 net451 net452 net46 net461 net462 net463 net47 net471 net472 net48 net481
MonoAndroid monoandroid
MonoMac monomac
MonoTouch monotouch
Tizen tizen40 tizen60
Xamarin.iOS xamarinios
Xamarin.Mac xamarinmac
Xamarin.TVOS xamarintvos
Xamarin.WatchOS xamarinwatchos
Compatible target framework(s)
Additional computed target framework(s)
Learn more about Target Frameworks and .NET Standard.
  • .NETFramework 2.0

    • No dependencies.
  • .NETStandard 2.0

    • No dependencies.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last updated 421 2/26/2021
2.0.0 300 2/26/2021
1.0.0 1,614 10/10/2015

This release supports the .NET Standard (.NET Core and .NET Framework).