c# - help sequence

Hi,

I need help, I have 4 characters: 1 2 3 4. I want to know how it is given as input. Like , 1234 or 123 or 234 or 124 or 134. If it is sequence like above then print "True" otherwise if sequence is reverse like 4321 or 432 or 421 or 431 then print "False". I can write code with If-else but want to know what is best and good way to too it.

Please help.

Thanks
josephm67Asked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

käµfm³d 👽Commented:
You could write an extension method that would encapsulate this logic:

public static class ExtensionMethods
{
    public static bool IsInSequence(this string value)
    {
        for (int i = 0; i < value.Length - 1; i++)
        {
            if (value[i] > value[i + 1]) return false;
        }

        return true;
    }
}

Open in new window


Then you would have a simple mechanism for invoking this logic:

string input = "1324";
bool sequenced = input.IsInSequence();

Open in new window

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
CodeCruiserCommented:
Just a small modification to line 5 above

for (int i = 0; i < value.Length - 2; i++)

to avoid index out of range exception.
0
käµfm³d 👽Commented:
@CodeCruiser

Thanks!  I realized this before writing the code, but apparently my brain didn't feel the need to transmit that bit to my fingers   = )
0
josephm67Author Commented:
thx
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
C#

From novice to tech pro — start learning today.