Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

how to convert a numerical string to an integer value without using any in-built conversion functions in c# or java?

Posted on 2010-08-18
3
Medium Priority
?
322 Views
Last Modified: 2013-12-14
I have a numerical string variable as:
string in="4266";

Now, I want to convert this to an integer value as 4266, without using any in-built conversion functions such as: int.Parse().
I just want it to be solved by using the mathematical operators such as Division, Remainder..

Thanks.
0
Comment
Question by:malakheti
3 Comments
 
LVL 4

Expert Comment

by:Scanman999
ID: 33469101
Euh... how can you make a division/remainder operation on a string ?
You need to convert it to a numerical value first... which is exactly your question .... have I missed something ?

I haven't done any C# for many years but isn't there a CINT() or VAL() kind of function to do that ?

0
 
LVL 86

Accepted Solution

by:
Mike Tomlinson earned 2000 total points
ID: 33469796
Does this qualify as a "solution"?

*Assuming only positive, whole integer values:
        private void button1_Click(object sender, EventArgs e)
        {
            string input="4266";
            int output = StringToInt(input);
            MessageBox.Show(input + " <== ? ==> " + output.ToString());
        }

        private int StringToInt(string input)
        {
            string digit;
            int curValue;
            int value = 0;
            for (int i = 0; i < input.Length; i++)
            {
                digit = input.Substring(input.Length - (i + 1), 1);
                curValue = "0123456789".IndexOf(digit);
                value = value + (curValue * (int)Math.Pow(10, i));
            }
            return value;
        }

Open in new window

0
 

Author Closing Comment

by:malakheti
ID: 33470284
Thanks.
This is what I wanted.
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you have ever found yourself doing a repetitive action with the mouse and keyboard, and if you have even a little programming experience, there is a good chance that you can use a text editor to whip together a sort of macro to automate the proce…
Here is a helpful source code for C++ Builder programmers that allows you to manage and manipulate HTML content from C++ code, while also handling HTML events like onclick, onmouseover, ... Some objects defined and used in this source include: …
The viewer will learn how to use and create keystrokes in Netbeans IDE 8.0 for Windows.
The viewer will learn how to use and create new code templates in NetBeans IDE 8.0 for Windows.

972 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question