C# Program to Find All Substrings in a String

This is a C# Program to list all substrings in a given string.

This C# Program Lists all Substrings in a given String.

Here Substring function extracts strings. It requires that you indicate a start index and a length. It then returns a completely new string with the characters in that range.

Here is source code of the C# Program to List all Substrings in a given String. The C# program is successfully compiled and executed with Microsoft Visual Studio. The program output is also shown below.

/*
 * C# Program to List all Substrings in a given String
 */
using System;
namespace mismatch
{
    class Program
    {
        string value, substring;
        int j, i;
        string[] a = new string[5];
        void input()
        {
            Console.WriteLine("Enter the String : ");
            value = Console.ReadLine();
            Console.WriteLine("All Possible Substrings of the Given String are :");
            for (i = 1; i <=value.Length; i++)
            {
                for (j = 0; j <= value.Length - i; j++)
                {
                    substring = value.Substring(j, i);
                    a[j] = substring;
                    Console.WriteLine(a[j]);
                }
            }
        }
        public static void Main()
        {
            Program pg = new Program();
            pg.input();
            Console.ReadLine();
        }
    }
}

In this C# program, we are reading the string using ‘value’ variable. Then for loop is used to count all possible substrings in the given string. Here substring function extracts strings.

It requires that you indicate a start index and a length. It then returns a completely new string with the characters in that range. Print the list of all substrings in a given string.

 
Enter the String : abab
All Possible Substrings of the Given String are :
a
b
a
b
ab
ba
ab
aba
bab
abab

Sanfoundry Global Education & Learning Series – 1000 C# Programs.