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• How can Pervent spam through a calculation?

  - by ricky roy

  Php I have a contact form that currently has a form field that tries to prevent spam through a calculation (3 + 1). I need that form field to have multiple calculations and at random so prevent spam.

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• Save/Load jFreechart TimeSeriesCollection chart from XML

  - by IMAnis_tn

  I'm working with this exemple wich put rondom dynamic data into a TimeSeriesCollection chart. My problem is that i can't find how to : 1- Make a track of the old data (of the last hour) when they pass the left boundary (because the data point move from the right to the left ) of the view area just by implementing a horizontal scroll bar. 2- Is XML a good choice to save my data into when i want to have all the history of the data? public class DynamicDataDemo extends ApplicationFrame { /** The time series data. */ private TimeSeries series; /** The most recent value added. */ private double lastValue = 100.0; public DynamicDataDemo(final String title) { super(title); this.series = new TimeSeries("Random Data", Millisecond.class); final TimeSeriesCollection dataset = new TimeSeriesCollection(this.series); final JFreeChart chart = createChart(dataset); final ChartPanel chartPanel = new ChartPanel(chart); final JPanel content = new JPanel(new BorderLayout()); content.add(chartPanel); chartPanel.setPreferredSize(new java.awt.Dimension(500, 270)); setContentPane(content); } private JFreeChart createChart(final XYDataset dataset) { final JFreeChart result = ChartFactory.createTimeSeriesChart( "Dynamic Data Demo", "Time", "Value", dataset, true, true, false ); final XYPlot plot = result.getXYPlot(); ValueAxis axis = plot.getDomainAxis(); axis.setAutoRange(true); axis.setFixedAutoRange(60000.0); // 60 seconds axis = plot.getRangeAxis(); axis.setRange(0.0, 200.0); return result; } public void go() { final double factor = 0.90 + 0.2 * Math.random(); this.lastValue = this.lastValue * factor; final Millisecond now = new Millisecond(); System.out.println("Now = " + now.toString()); this.series.add(new Millisecond(), this.lastValue); } public static void main(final String[] args) throws InterruptedException { final DynamicDataDemo demo = new DynamicDataDemo("Dynamic Data Demo"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); while(true){ demo.go(); Thread.currentThread().sleep(1000); } } }

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• if string is alphabetically greater than other string in objective

  - by Jonathan

  I'm trying to use an if statement to work out which of 2 strings comes first alphabetically. Like with numbers and greater and less than: if (1 < 2) { just with strings: if(@"ahello" < @"bhello") { Or would I have to have a string containing all the letters and then check the index of the first char in each string and see which index is greater, and the index that is less than the other comes first in the alphabet and then if they are equal move on to the next char and repeat?

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• Exact cin equivalent function in python

  - by gkt.pro

  Suppose user enter this string at terminal 123 456 456 //then hit enter How do I scan these three (could be more) numbers in different variables in python Could be something like this: for i in range(1,n) m[i]=#WHAT FUNCTION SHOULD I PUT HERE In c++ we can easily use cin>>m[i] inside above loop to scan the variables. If i use input() or raw_input() , they would scan whole line in single variable.

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• Set Hudson build number from a script

  - by Joe Schneider

  Is there a way to set the next build number in Hudson from a script? I have the nextBuildNumber plug-in installed, and attempted to use wget with --post-data, but that page appears to require login. I have two steps of a chained build and I want to keep the build numbers in sync.

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• Creating a variables file in Flex 3...

  - by medoix

  I am trying to place API variables on ONE class file or mxml file and call these variables in other random class or mxml files... any suggestions?

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• How to print a range with decimal points in Python?

  - by jabo

  I can print a range of numbers easily using range, but is is possible to print a range with 1 decimal place from -10 to 10? e.g -10.0, -9.9, -9.8 all they way through to +10?

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• Crystal report parametr field validation

  - by Domnic

  Im using crystal report in asp.net....I have create parameter fields to get input....Consider if i create numeric parametere field then i have to validate that particular field if user enter other than numbers how?

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• Using regex to add leading zeroes

  - by hgpc

  I would like to add a certain number of leading zeroes (say up to 3) to all numbers of a string. For example: Input: /2009/5/song 01 of 3 Output: /2009/0005/song 0001 of 0003 What's the best way to do this with regular expressions?

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• How to run my script x times a day? (ruby on linux)

  - by Radek

  I want to run my ruby script x times a day (the number might change) on my linux box. What would be the best way to do so if I do not want it to happen at the same time? I want the time (hour and minute) to be random

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• Java phone dialer

  - by Galaxy

  Hi, I want to develop phone dialer application, the app is to use modem to dial phone numbers and play voice messages . which java api is to be used,other wise is their opensource IVR paltform to serve that ?

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• Accessing Subversion commit data externally

  - by gaoshan88

  I have need to access subversion data (commit messages, files updated, revision numbers, dates modified, author, etc.) externally. Is this something for some sort of subversion hook or is there a decent third party package for this or some other "best practice" way to approach accessing subversion data externally (and by external I mean from a php/ruby or python script... external to subversion itself)?

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• What's the worst name you've seen for a product? [closed]

  - by Dean J

  (Community wiki from the start.) What's the worst name you've seen for a product? It might be a euphemism the company didn't know about, maybe something like Penetrode (from Office Space). It might be something impossible to do a web search on, like the band named "Download". It might be some combination of random syllables that's just awful. But no matter what, it's bad. What's the worst you've seen?

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• Python - Differences between elements of a list

  - by psihodelia

  Given a list of numbers how to find differences between every (i)-th and (i+1)-th of its elements? Should one better use lambda or maybe lists comprehension?

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• RSA PKCS1 implementation in Python

  - by user307016

  I'm working on the RSA PKCS1 implementation in Python,here's the message block i got: m = [0,2,random paddings,0,message integers] I read the RFC2313,and get a equation seems for transforming the message block object into an big-edian integer. I just get confused about how to transform it in Python. Any help would be appreciated.

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• Is there a work around for invalid octal digit in an array?

  - by sircrisp

  I'm trying to create an array which will hold the hours in a day so I can loop through it for a clock. I have: int hourArray[24] = {12, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11, 12, 01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11}; I am getting the error on the following numbers in order 08, 09, 08, 09. It tells me: Error: invalid octal digit I've never run into this before and I'm wondering if there is any way around it?

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• Creating phone number format standard php

  - by Webnet

  I found this resource when looking to commonly format user's phone numbers.... http://www.eyesis.ca/projects/formatphone.html I was wondering if someone else might have a better solution.

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• Float conditional in bash

  - by Werner

  Hi, in bash I need to compare two float numbers, one which I define in the script and the other read as paramter, for that I do: if [[ $aff -gt 0 ]] then a=b echo "xxx "$aff #echo $CX $CY $CZ $aff fi but I get the error: [[: -309.585300: syntax error: invalid arithmetic operator (error token is ".585300") What is wrong? Thanks

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• weite c++ program that convert decimal"d" to base"b" using concept of stack

  - by nurhusen tahir

  c++ program that convert decimal "d" to base "b" by using the concept of stack,where b and d are variables for base and decimal numbers.

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• easy hex/float conversion

  - by yeus

  I am doing some input/output between a c++ and a python program (only floating point values) python has a nice feature of converting floating point values to hex-numbers and back as you can see in this link: http://docs.python.org/library/stdtypes.html#additional-methods-on-float Is there an easy way in C++ to to something similar? and convert the python output back to C++ double/float? This way I would not have the problem of rounding errors when exchanging data between the two processes... thx for the answers!

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• How the swing's BoxModel works ?

  - by sasquatch90

  Let's say I would like to create a simple calculator. It consists of 3 fields. Text field to show result, field with checkboxes to select system and field with numbers. What kind of component should I use for each element ? How can I position elements in my window ? How can I position elements inside component (ie checkboxes) ? This is what I'm trying to achieve. http://img28.imageshack.us/img28/7691/lab8c.jpg

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• Algorithm to find 'maximal' indipendent set in a simple graph

  - by none

  Hi, in words, can someone post directions towards finding the 'maximal' independent set in a simple graph? I read up something from ETH site which said one can find such in O(n) by simply picking a random vertex v and than scanning the rest and attempting to find if there's an edge from v to the rest. Thanks

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• Does the usage of interfaces slow down programs?

  - by Olga

  Is it true that interfaces slow down programs? I have heard that this is the case because during running time each during each usage of an object implementing this interface the decision has to be made which class implementing the interface this object belongs to. I am especially interested in an answer for C++, but also in general. And if this is true, some numbers would be helpful, too. Thank you very much!

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• Regular expression to extract text between two sets of characters (Javascript)

  - by optician

  I would like to extract some text between two points in a string, in Javascript Say the string is "start-extractThis-234" The numbers at the end can be any number, but the hyphens are always present. Ideally I think capturing between the two hypens should be ok. I would like the result of the regex to be extractThis

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• VS 2010 Crashes on a clean machine

  - by Jonathan Allen

  I just built a clean PC with WIndows 7 x64. And yet Visual Studio 2010 still crashes at random just on startup or when creating new projects. Is this affecting anyone else and do you know of any patches or work-arounds?

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