Predetermined characters

Question

I wish to know is there any code in C# to pick up predetermined characters from random input.

Suppose we say predetermined characters are "Address"

Random console input is 3545325Adggfdgdfgd3!@$@@#rsfssefas&*acs.

Program will realise there are A, d, d, r, e, s, and s letters in it and pick up and return it.

Sunny Sharma · Answer

Hi Maha How about doing it this way: ------------------------------------------------------------------- string inputStr = 3545325Adggfdgdfgd3!@$@@#rsfssefas&*acs ; string checkStr = Address ; List char > FoundChars = new List char >(); if (! string .IsNullOrEmpty(inputStr)) { foreach ( char c in checkStr) { if (inputStr.IndexOf(c) > -1) { FoundChars.Add(c); continue ; } } foreach ( char c in FoundChars) { Console .Write(c); } } ------------------------------------------------------------------------- Hope it helps :)

Maha · Answer

I did a small modification in your program so it fulfills my expectation. Thank you for your help. Modification is character must be the i/p from the keyboard. Which is string inputStr = Console.ReadLine();

Sunny Sharma · Answer

so what output do you expect?

Maha · Answer

Thank you for your help.