non repeating random number generation?

gencor45 · 02-08-2005, 11:51 AM

Any help would be appreciated!
Im new to C# and im going crazy trying to figure out a simple way to create a 4-digit non-repeating random number for a number guessing game. If anyone can help with the code I already have I would be grateful.

Heres what I have:

Code:

private void form1_Load(object sender, System.EventArgs e)
        {
string answer;
            
//Creates random number array

String[] myNumbers={"0","1","2","3","4","5","6","7","8","9"};
Random rndNumbers=new Random();

I dont know what kind of loop make from here, and then I dont understand how to put the random number into a string

Please help

DanFraser · 02-08-2005, 05:23 PM

I use something like this for my code i am using in my project -

Code:

Stack numberCheck = new Stack();
int number = 0;
Random randomNumber = new Random();
bool exists = false;

//generates a number then checks if it has already been made

number = randomNumber.Next(1,100);
exists = numberCheck.Contains(number);
while(exists == true)
{
//shrink this code down later by making a function of your own
//which can also be used above too
number = randomNumber.Next(1,100);
exists = numberCheck.Contains(number);
}

Should be fairly easy to see where you can change things to suit your needs.

And use the Convert to change the int to a string ie. -

string word = Convert.tostring(number);

02-08-2005, 11:51 AM	#1
gencor45 Registered User Join Date: Feb 2005 Posts: 1	non repeating random number generation? Any help would be appreciated! Im new to C# and im going crazy trying to figure out a simple way to create a 4-digit non-repeating random number for a number guessing game. If anyone can help with the code I already have I would be grateful. Heres what I have: Code: private void form1_Load(object sender, System.EventArgs e) { string answer; //Creates random number array String[] myNumbers={"0","1","2","3","4","5","6","7","8","9"}; Random rndNumbers=new Random(); I dont know what kind of loop make from here, and then I dont understand how to put the random number into a string Please help
gencor45 is offline

02-08-2005, 05:23 PM	#2
DanFraser Registered User Join Date: Jun 2003 Posts: 90	I use something like this for my code i am using in my project - Code: Stack numberCheck = new Stack(); int number = 0; Random randomNumber = new Random(); bool exists = false; //generates a number then checks if it has already been made number = randomNumber.Next(1,100); exists = numberCheck.Contains(number); while(exists == true) { //shrink this code down later by making a function of your own //which can also be used above too number = randomNumber.Next(1,100); exists = numberCheck.Contains(number); } Should be fairly easy to see where you can change things to suit your needs. And use the Convert to change the int to a string ie. - string word = Convert.tostring(number); __________________ He who asks is a fool for five minutes, but he who does not ask remains a fool forever. The fool wonders, the wise man asks. - Benjamin Disraeli There are no foolish questions and no man becomes a fool until he has stopped asking questions. Charles Steinmetz
DanFraser is offline

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