How to create a Set of Numbers from 1 to N in C# - Step by Step Examples

How to create a Set of Numbers from 1 to N in C# ?

Answer

To create a set of numbers from 1 to N in C#, you can use a loop to add elements to a HashSet until it reaches the desired number N.


✐ Examples

1 Create a Set of Numbers from 1 to 5

In this example,

  1. We define a method named CreateSetOfNumbers that takes an integer N as a parameter. This parameter represents the upper limit of the set, inclusive.
  2. Inside the method, we create a new HashSet named numberSet to store the numbers.
  3. We use a for loop to iterate from 1 to N, adding each number to the numberSet using the Add method.
  4. Finally, we return the numberSet containing the set of numbers from 1 to N.

C# Program

using System;
using System.Collections.Generic;

public class Program
{
    public static HashSet<int> CreateSetOfNumbers(int N)
    {
        HashSet<int> numberSet = new HashSet<int>();
        for (int i = 1; i <= N; i++)
        {
            numberSet.Add(i);
        }
        return numberSet;
    }

    public static void Main(string[] args)
    {
        int N = 5;
        HashSet<int> mySet = CreateSetOfNumbers(N);
        foreach (int num in mySet)
        {
            Console.Write(num + " ");
        }
    }
}

Output

1 2 3 4 5

2 Create a Set of Numbers from 1 to 10

In this example,

  1. We define a method named CreateSetOfNumbers that takes an integer N as a parameter. This parameter represents the upper limit of the set, inclusive.
  2. Inside the method, we create a new HashSet named numberSet to store the numbers.
  3. We use a for loop to iterate from 1 to N, adding each number to the numberSet using the Add method.
  4. Finally, we return the numberSet containing the set of numbers from 1 to N.

C# Program

using System;
using System.Collections.Generic;

public class Program
{
    public static HashSet<int> CreateSetOfNumbers(int N)
    {
        HashSet<int> numberSet = new HashSet<int>();
        for (int i = 1; i <= N; i++)
        {
            numberSet.Add(i);
        }
        return numberSet;
    }

    public static void Main(string[] args)
    {
        int N = 10;
        HashSet<int> mySet = CreateSetOfNumbers(N);
        foreach (int num in mySet)
        {
            Console.Write(num + " ");
        }
    }
}

Output

1 2 3 4 5 6 7 8 9 10

Summary

In this tutorial, we learned How to create a Set of Numbers from 1 to N in C# language with well detailed examples.


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