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  • Is 23,148,855,308,184,500 a magic number, or sheer chance?

    - by Roddy
    News reports such as this one indicate that the above number may have arisen as a programming bug. A man in the United States popped out to his local petrol station to buy a pack of cigarettes - only to find his card charged $23,148,855,308,184,500. That is $23 quadrillion (£14 quadrillion) - many times the US national debt.* In hex it's $523DC2E199EBB4 which doesn't appear terribly interesting at first sight. Anyone have any thoughts about what programming error would have caused this?

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  • Fixed number of rows In Access Report

    - by Pronek
    Hello All, I am having tried a access 2007 report with fixed numbers of rows (records) per page. For example, I like to fix total number of records (rows) to 10 per page while underlying query might have 5 records in some criteria or 15 records in some case. If any idea, please share me. TIA ProNek

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  • Find a free X11 display number

    - by James
    I have some unit tests that need an X11 display so I plan to start Xvfb before running them, but to start Xvfb I will need a free display number to connect it to. My best guess is to see what's free in /tmp/.X11-unix but I'm not sure how to handle the race if many tests try to start simultaneously. sshd must do this, does anyone know how?

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  • round number in JavaScript to N decimal places

    - by Richard
    in JavaScript, the typical way to round a number to N decimal places is something like: function round_number(num, dec) { return Math.round(num * Math.pow(10, dec)) / Math.pow(10, dec); } However this approach will round to a maximum of N decimal places while I want to always round to N decimal places. For example "2.0" would be rounded to "2". Any ideas?

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  • Search row with highest number of cells in a row with colspan

    - by user593029
    What is the efficient way to search highest number of cells in big table with numerous colspan (merge cells ** colspan should be ignored so in below example highest number of cells is 4 in first row). Is it js/jquery with reg expression or just the loop with bubble sorting. I got one link as below explainig use of regex is it ideal way ... can someone suggest pseudo code for this. High cpu consumption due to a jquery regex patch <table width="156" height="84" border="0" > <tbody> <tr style="height:10px"> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> </tr> <tr style="height:10px"> <td width="10" style="width:10px; height:10px" colspan="2"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> </tr> <tr style="height:10px"> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px" colspan="2"/> </tr> <tr style="height:10px"> <td width="10" style="width:10px; height:10px" colspan="2"/> <td width="10" style="width:10px; height:10px"/> <td width="10" style="width:10px; height:10px"/> </tr> </tbody> </table>

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  • Return number of rows affected by SQL UPDATE statement in Java

    - by Krt_Malta
    I'm using a MySQL database and accessing it through Java. PreparedStatement prep1 = this.connection.prepareStatement("UPDATE user_table SET Level = 'Super' WHERE Username = ?"); prep1.setString(1, username); The update statement above works fine however I'd like to get the number of rows affected with this statement. Is this possible please?

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  • Variable number of arguments in ParamArray ArgList()

    - by Excel VBA guy
    If I want to pass a number of values for the ParamArray arglist via an array, how do I do it? From what I've read so far, on VBA, it appears that I need to explicitly list the values that I want to pass. But what if there are potentially different numbers of values to pass, so I do not know in advance how many I'll want to pass to the function? Is there not some way of using an array (a one-dimensional array) with a variable dimension?

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  • problem with Double and Rational Number

    - by altair211
    Hi, I am writing a function in which I need to read a string contains floating point number and turn it back to Rational. But When I do toRational (read input :: Double), it will not turn for eg: 0.9 into 9 % 10 as expected, but instead 81..... % 9007... Thx

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  • how can I count number of occurance of a word in a string while ignoring cases

    - by Ronny
    I am trying to count the number of occurance of a given word while ignoring cases. I have tried <?php $string = 'Hello World! EARTh in earth and EARth';//string to look into. if(stristr($string, 'eartH')) { echo 'Found';// this just show eartH was found. } $timesfound = substr_count($string, stristr($string, 'eartH'));// this count how many times. echo $timesfound; // this outputs 1 instead of 3.

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  • java mapping for oracle number type

    - by aauser
    I have database with oracle number type. Could there any possible issues with using java Double when updating table with numeric column. Should i switch BigDecimal or Double is approriate type. As I fas as I know, BigDecimal is used when arbitrary precision required, when deal with prices for example. Consider simple API updatePrice(Double d) Should i persist double as is or BigDecimal.valueOf(d) is preferable ?

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  • PHP regular expression for positive number with 0 or 2 decimal places

    - by Peter
    Hi I am trying to use the following regular expression to check whether a string is a positive number with either zero decimal places, or 2: ^\d+(\.(\d{2}))?$ When I try to match this using preg_match, I get the error: Warning: preg_match(): No ending delimiter '^' found in /Library/WebServer/Documents/lib/forms.php on line 862 What am I doing wrong?

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  • Determine number of screens and screen relative location without WinForms

    - by Philipp Schmid
    I want to save and restore the window position of my WPF application. I want to make the code robust to use with multiple monitors who's number and relative location can change (I want to avoid opening my application off-screen when the monitor configuration has changed inbetween invocations). I know of the Screen class in System.Windows.Forms, but I don't want to take a dependency on that assembly just for this feature.

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