C# Program to find all substrings in a string

• Using following example we can determine the sub string in the given string .

 class SubStringInString  
   {  
     static void Main()  
     {  
       string str = "abcdefghijklmn";  
       for (int i = 1; i < str.Length; i++)  
       {  
         for (int start = 0; start <= str.Length - i; start++)  
         {  
           string substr = str.Substring(start, i);  
           Console.WriteLine(substr);  
         }  
       }  
       Console.ReadLine();  
     }  
   }