Generate Possible Strings

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I want to make program where i would generate all possible combinations if i have on 4 places and in first 3 places there is sign and at the 4th place is number. And to it will write it in notepad. Any idea how i can start with this?

Posted 18-Sep-11 6:06am

HypoXxX

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Pradeep Shukla 18-Sep-11 12:44pm

Are you trying to generate a string of length 4 in which first 3 are alphabets and 4th is a numeric ?

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jonatans · Answer 1 · 2011-09-18T07:17:00

You can nest for-loops and have them iterate through the desired characters like this:

C#

for (char symbol1 = 'a'; symbol1 <= 'z'; symbol1++)
{
    for (char symbol2 = 'a'; symbol2 <= 'z'; symbol2++)
    {

    }
}

and if You wish to print to a text file:

C#

StreamWriter output = new StreamWriter("output.txt");
output.WriteLine("Hello! This is the first line in my text file.");
output.WriteLine("And this is the second one.");
output.Close();

don't forget to call output.Close() or output.Flush() to make sure that the text is written to the file before your program terminates

or simply use:

C#

File.WriteAllText("output.txt", "Hello!");

You will need to add "using System.IO;" at the top of your program

Dev. RoOo7 · Answer 2 · 2011-09-18T07:34:00

ADD this at the begining:

using System.IO;

StreamWriter sw = new StreamWriter("File name.txt");


for (char symbol1 = 'a'; symbol1 <= 'z'; symbol1++)

    for (char symbol2 = 'a'; symbol2 <= 'z'; symbol2++)

         for (char symbol3 = 'a'; symbol2 <= 'z'; symbol2++)

            for (int num = 0; num <= 10; num++)

                 sw.WriteLine("{},{},{},{}",symbol1,symbol2,symbol3,num );
                 sw.close();

Good Luck :)

Mohammad A Rahman · Answer 3 · 2011-09-18T14:28:00

It might be helpful,

C#

using System;
using System.IO;
using System.Linq;

class Program
{
    static void Main(string[] args)
    {
        int counter = -1;

        using (StreamWriter writer = new StreamWriter(@"C:\Temp\DataFile.txt", true))
        {
            Array.ForEach(GetData(), item =>
            {
                if (counter >= 9) counter = -1;
                writer.WriteLine(string.Concat(item, item, item, ++counter));
            });
        }
    }

    static char[] GetData()
    {
        return Enumerable.Range('a', ('z' - 'a') + 1).Select(c => (char)c).ToArray();
    }
}

:)

Generate Possible Strings

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