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• How to generate unique serial number of machine in Delphi?

  - by noxwow

  Hi, I have question how to generate unique serial number of machine in Delphi? I tried to do this using the ID the motherboard or processor, but unfortunately it's unfortunately supported. Partition serial numbers, etc. fall off, because it is changing after the formatted. I'm looking for something that doesn't change after the formatted. Has anyone any idea?

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• Getting every odd variable in a list?

  - by John

  If I make a list in Python and want to write a function that would return only odd numbers from a range 1 to x how would I do that? For example, if I have list [1, 2, 3, 4] from 1 to 4 (4 ix my x), I want to return [1, 3].

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• Random number in a loop

  - by Sam

  Hi all, having an issue generating random numbers in a loop. Can get around it by using Thread.Sleep but after a more elegant solution. for ... Random r = new Random(); string += r.Next(4); Will end up with 11111... 222... etc. Suggestions?

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• How can I left-justify numerical output in fortran?

  - by mishaF

  I am writing some simple output in fortran, but I want whitespace delimiters. If use the following statement, however: format(A20,ES18.8,A12,ES18.8) I get output like this: p001t0000 3.49141273E+01obsgp_oden 1.00000000E+00 I would prefer this: p001t0000 3.49141273E+01 obsgp_oden 1.00000000E+00 I tried using negative values for width (like in Python) but no dice. So, is there a way to left-justify the numbers? Many thanks in advance!

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• Add a + sign to a +ve number in PHP

  - by user318466

  I need to design a function to return -ve numbers unchanged but should add a + sign at the start of the number if its alreay no present. Example: Input Output ---------------- +1 +1 1 +1 -1 -1 It will get only numeric input. function formatNum($num) { # something here..perhaps a regex? } This function is going to be called several times in echo/print so the quicker the better.

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• Regular expression with no maximum limit

  - by KhanS

  I Need a regular expression which accepts all types of characters (alphabets, numbers and all special characters), and miniumum number of characters should be 15 and no limit for maximum characters.

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• How can I estimate server costs for creating an app?

  - by G Dottin

  Im writing up a business plan and im having some trouble with the finance part. I put an estimate on the cost of developers, web designers and everything but server costs. Im not a programmer so I dont know all the details. But how much would you think servers are going to cost for a complex app. I cant get into too many details but it keeps track of user preferences, stores data about the user and there is quite alot of back-end to it.

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• Decimal validation in server side textbox using C#

  - by V.V

  I use this code for decimal validation.It was working fine.but it allow to enter the alphabets into the text box when i exit from the text box the error message will show nearby textbox.I need,if i press the alphabets the text box doesn't allow to enter the text box , how to do this? <asp:RegularExpressionValidator ControlToValidate="txtNumber" runat="server" ValidationExpression="^[1-9]\d*(\.\d+)?$" ErrorMessage="Please enter only numbers"> </asp:RegularExpressionValidator>

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• PHP Priority Queue Implementation

  - by Zahymaka

  I just finished coding a complex job assignment application where a lot of the work was done using priority queues. When I deployed, however, I discovered the web server ran PHP 5.2. Has there been an implementation for PHP<5.3 that can server as a drop-in replacement for SPLPriorityQueue?

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• How to delete zero components in a vector in Matlab?

  - by xiaodai

  I have a vector for example a = [0 1 0 3] I want to turn a into b which equals b = [1 3] How do I perform this in general? So I have a vector with some zero components and I want to remove the zeroes and leave just the non-zero numbers. Sorry I am new to Matlab

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• php find line number for a particular keyword

  - by Patrick

  Hello, say I have a paragraph of text, with some new lines/line breaks. I would like to find the occurance of a certain keyword, and return the line numbers of those keywords. How do I do that? Thanks!

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• A comprehensive regex for phone number validation

  - by Nicholas Trandem

  I'm trying to put together a comprehensive regex to validate phone numbers. Ideally it would handle international formats, but it must handle US formats, including the following: 1-234-567-8901 1-234-567-8901 x1234 1-234-567-8901 ext1234 1 (234) 567-8901 1.234.567.8901 1/234/567/8901 12345678901 I'll answer with my current attempt, but I'm hoping somebody has something better and/or more elegant.

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• What is a "wrapper service" in SOA?

  - by Zubair

  I have looked on the web but I am confused as to whether a wrapper service wraps a legacy application, or a set of complex services.

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• Contact picker with search function

  - by tiex

  This question1 describes a way how to show list of phone numbers and select one of them if my app needs a phone number. But image if I have a huge contact list, it is not enough to just show list but possibility for filtering (by contact's name) is also needed. Is there a standard way to show phones list with picking possibility and with filtering possibility? (I wouldn't like to invent my own) Is there a solution for the problem for sdk 2.0 and lower?

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• telerik radgrid-pagination issue

  - by bhuvana

  why pagination is not working in a radgrid?If i click the pages (numbers) or next/previous buttons,i can see only a single line ,nt even a grid.Please help!

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• What's the difference between C and C++

  - by Dinah

  I know that C++ has the concept of objects but C doesn't. I also know that pretty much all there is to know about C fits into K & R but the C++ library is vastly more complex. There have got to be other big differences though. What are the major differences between C and C++?

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• Counting number of values between interval

  - by calccrypto

  Is there any efficient way in python to count the times an array of numbers is between certain intervals? the number of intervals i will be using may get quite large like: mylist = [4,4,1,18,2,15,6,14,2,16,2,17,12,3,12,4,15,5,17] some function(mylist, startpoints): # startpoints = [0,10,20] count values in range [0,9] count values in range [10-19] output = [9,10]

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• C programing - Print the 3rd line of a txt

  - by Pedro

  Hi...Imagine that i have on a txt this: Hello SLB 3 1324 how can i get the 3rd line? fgets or fscanf? and imagine on a txt this: 8;9;10;12 how can i print the numbers separeted?

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• Set the right two characters (if there are any) to capitals?

  - by Hyflex

  Below is my data: Data Here 94/452O Data more 94/4522i Data bla 94/111 Data bla 94/459es Data bla 94/444 items is automatically generated by some previous code but it could come out like: items = ["Data Here 94/452O", "Data more 94/4522i", "Data bla 94/111", "Data bla 94/459es", "Data bla 94/444"] Now currently I'm appending the following: "\n".join(items).replace("4ke", "9") with a few other .replaces however I want it to replace/change the characters on the end of the numbers with a capital letter instead of lowercase... Output: Data Here 94/452O Data more 94/4522I Data bla 94/111 Data bla 94/459ES Data bla 94/444

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• Is there a way to check if a var is using setInterval() ?

  - by chadley

  For instance, I am setting an interval like timer = setInterval(fncName, 1000); and if i go and do clearInterval(timer); it does clear the interval but is there a way to check that it cleared the interval? I've tried getting the value of it while it has an interval and when it doesn't but they both just seem to be numbers.

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• Easy way to load test asp.net application

  - by ryudice

  Is there a simple way to load test an asp.net application? I've been reading on some microsoft pattern and practices documents that tell you to use ACT which seems kind of hard to use for complex requests.

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• Which kind of changes can't I do with lightweight migration in Core Data?

  - by dontWatchMyProfile

  I recently tried a lot of different stuff with lightweight migration. These all work: 1) Rename attributes (with renaming identifier specified) 2) Add attributes 3) Add new entity + new attribute + inverse relationship to an already existing entity 4) remove existing entity + relationships to that entity = It almost looks like just about anything can be handled with LM. Did I miss something? In which cases am I getting into trouble and need an some more complex approach?

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• Ignoring certain chars globally

  - by shi kui

  Consider it that '_'s in a number doesn't change that number's value so 1000==1_000==10_00. The Problem: given numbers like 1_244_23 1412_2 1_1111 etc..., how could I decide whether certain number appears in that collection? For example: 1244_23 yes, 11_111 yes, 1412_1 no. How could using regex to solve this? I mean, if I could tell the regex engine just ignore these '_''s when matching then this problem becomes trivial? How could I do so?

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• AS3: why is this happening?

  - by Bin Chen

  Hi, I just encounter a strange problem: var a:ClassA = new ClassA; var b:ClassA = a; The program keeps running sometime, the a = null, b = null. The program is a complex one, I am sure that no part will touch a, and b. My question is, will the runtime(garbage collector) to collect the memory of "a" and then assign a and b to null? I am confused, thanks!

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• Rails or Sinatra? which is good to start learning, for a php programmer?

  - by user187809

  I've been working far too long with php and getting bored with it. I also want to learn a new language. I've been using Ruby and like it. I've to decide between Rails and Sinatra, which one would you recommend? Is it true that Sinatra can't be used to build complex apps, and its only for simple apps?

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