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  • How can we extract substring of the string by position and separator.

    - by Harikrishna
    How can we divide the substring from the string Like I have string String mainString="///Trade Time///Trade Number///Amount Rs.///"; Now I have other string String subString="Amount" Then I want to extract the substring Amount Rs. with the help of second string named subString not by any other method But it should be extracted through two parameters like first is I have index no of Amount string and second is until the next string ///.

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  • replace the line to add some text

    - by shantanuo
    The MySQL dump backup file has the following line... # head -40 backup20-Apr-2010-07-32.sql | grep 'CHANGE MASTER TO ' -- CHANGE MASTER TO MASTER_LOG_FILE='mysql-bin.000068', MASTER_LOG_POS=176357756; a) I need to complete the statement with the parameters like Master host, user and password. b) I do also need to remove the comment "--" The line should look something like this... CHANGE MASTER TO MASTER_HOST='111.222.333.444', MASTER_USER='slave_user', MASTER_PASSWORD='slave_user', MASTER_LOG_FILE='mysql-bin.000068', MASTER_LOG_POS=176357756;

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  • How to get null when use head funtion with a empty list in cypher?

    - by PeaceMaker
    I have a cypher query like this. START dep=node:cities(city_code = "JGS"), arr=node:cities(city_code = "XMN") MATCH dep-[way:BRANCH2BRANCH_AIRWAY*0..1]->()-->arr RETURN length(way), transfer.city_code, extract(w in way: w.min_consume_time) AS consumeTime The relationship named "way" is a optional one, so the property named "consumeTime" will be a empty list when the relationship "way" not exsit. The query result is: | 0 | "JGS" | [] | | 1 | "SZX" | [3600] | When I want to use the head function with the property "consumeTime", it return a error "Invalid query: head of empty list". How can I get a result like this? | 0 | "JGS" | null | | 1 | "SZX" | 3600 |

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  • How to detect OpenGL capabilities without creating a GLSurfaceView (Android)

    - by ADB
    I am trying to access the OpenGL capability of the phone before deciding whether to use OpenGL or Canvas for graphics puposes. However, all the functions that I can read documentation on requires you to already have a valid OpenGL context (namely, create a GLSurfaceView and assign it a rendered. Then check the OpenGL parameters in the onSurfaceCreated). So, is there a way to check the extensions, renderer name and max texture size capability of the phone BEFORE having to create any OpenGL views?

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  • How do negated patterns work in .gitignore?

    - by chrisperkins
    I am attempting to use a .gitignore file with negated patterns (lines starting with !), but it's not working the way I expect. As a minimal example, I have the folllowing directory structure: C:/gittest -- .gitignore -- aaa/ -- bbb/ -- file.txt -- ccc/ -- otherfile.txt and in my gitignore file, I have this: aaa/ !aaa/ccc/ My understanding (based on this: http://ftp.sunet.se/pub//Linux/kernel.org/software/scm/git/docs/gitignore.html) is that the file aaa/ccc/otherfile.txt should not be ignored, but in fact git is ignoring everything under aaa. Am I misunderstanding this sentence: "An optional prefix ! which negates the pattern; any matching file excluded by a previous pattern will become included again."? BTW, this is on Windows with msysgit 1.7.0.2.

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  • Are indivisible operations still indivisible on multiprocessor and multicore systems?

    - by Steve314
    As per the title, plus what are the limitations and gotchas. For example, on x86 processors, alignment for most data types is optional - an optimisation rather than a requirement. That means that a pointer may be stored at an unaligned address, which in turn means that pointer might be split over a cache page boundary. Obviously this could be done if you work hard enough on any processor (picking out particular bytes etc), but not in a way where you'd still expect the write operation to be indivisible. I seriously doubt that a multicore processor can ensure that other cores can guarantee a consistent all-before or all-after view of a written pointer in this unaligned-write-crossing-a-page-boundary situation. Am I right? And are there any similar gotchas I haven't thought of?

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  • shell_exec & clamav

    - by David
    When i call this: exec("clamscan --no-summary file.php", $out, $int); with good parameters, the script doen't finish. The file is too small and in console it comand duration is 2 seconds. If i put incorrect parameter the script finished and return correcte errorcode. With shell_exec it does the same.

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  • SQL Injection When Using MySQLi Prepared Statements

    - by Sev
    If all that is used to do any and all database queries is MySQLi prepared statements with bound parameters in a web-app, is sql injection still possible? Notes I know that there are other forms of attack other than sql-injection, but my question is specific to sql-injection attacks on that particular web application only.

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  • Maven: Multiple class with the same path implemented in different jar

    - by Phuong Nguyen de ManCity fan
    I'm running into trouble with having multiple class with the same path (i.e. same name, same package!!!). For some reason, gwt-dev comes with its own version of org.apache.xerces.jaxp.DocumentBuilderFactoryImpl and javax.xml.parsers.DocumentBuilderFactory. At the same time, spring also depends on these classes but from different jar. I don't know what should be, but look like xalan & xml-api are the two dependencies that spring depends on (these dependency are optional) Funny thing is that eclipse can run the same code (it's a unit test) without problem, but surefire cannot. So I guess the problem is due to the way each runner consider the priority of each jar. Now come to the question: How can I setup my POM so that I can sure that when ever any code running inside my app, then class from a jar will be selected over class from other jar? Thanks.

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  • Authentication with wget

    - by Llistes Sugra
    I am currently accepting the parameters login and password in my servlet, but logs are storing this info when using wget (as long as it is GET method, and apache is in the middle) Instead of this I want to enhance my servlet's authentication accepting: wget --http-user=login --http-password=password http://myhost/myServlet How can I read, in my servlet, the server side, the login and the password user is sending, in java code?

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  • Excel, VBA Vlookup, multiple returns into rows

    - by Sean Mc
    Very new to VBA, so please excuse my ignorance. How would you alter the code below to return the result into rows as opposed to a string? Thanks in advance.... data Acct No CropType ------- --------- 0001 Grain 0001 OilSeed 0001 Hay 0002 Grain function =vlookupall("0001", A:A, 1, " ") Here is the code: Function VLookupAll(ByVal lookup_value As String, _ ByVal lookup_column As range, _ ByVal return_value_column As Long, _ Optional seperator As String = ", ") As String Application.ScreenUpdating = False Dim i As Long Dim result As String For i = 1 To lookup_column.Rows.count If Len(lookup_column(i, 1).text) <> 0 Then If lookup_column(i, 1).text = lookup_value Then result = result & (lookup_column(i).offset(0, return_value_column).text & seperator) End If End If Next If Len(result) <> 0 Then result = Left(result, Len(result) - Len(seperator)) End If VLookupAll = result Application.ScreenUpdating = True End FunctionNotes:

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  • How do you efficiently generate a list of K non-repeating integers between 0 and an upper bound N

    - by tucuxi
    The question gives all necessary data: what is an efficient algorithm to generate a sequence of K non-repeating integers within a given interval. The trivial algorithm (generating random numbers and, before adding them to the sequence, looking them up to see if they were already there) is very expensive if K is large and near enough to N. The algorithm provided here seems more complicated than necessary, and requires some implementation. I've just found another algorithm that seems to do the job fine, as long as you know all the relevant parameters, in a single pass.

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  • What explains the term orthogonal in a more non-nerd fashion?

    - by dontWatchMyProfile
    For example: Cardinality and optionality are orthogonal properties of a relationship. You can specify that a relationship is optional, even if you have specified upper and/or lower bounds. This means that there do not have to be any objects at the destination, but if there are then the number of objects must lie within the bounds specified. What exactly does "orthogonal" mean? I bet it's just a fancy soundig nerd-style word for something that could be expressed a lot easier to understand for average people ;) From wikipedia: In mathematics, two vectors are orthogonal if they are perpendicular, i.e., they form a right angle. The word comes from the Greek ????? (orthos), meaning "straight", and ????a (gonia), meaning "angle". Anyone?

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  • Is is possible to apply 2 font filters in SIFR?

    - by Irina
    Hello, is it possible to apply 2 font filters that are of the same type but with different parameters in SIFR? I want to get an outline effect around my fonts and tried to apply 2 glow filters with different settings to get the desirable look, but it looks like only 1 filter (last in the list of filters) is applied. Does anyone know if this is possible? Or if not how can I create a font outline in SIFR? Thank you

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  • Wav analysis in python

    - by mudder
    I'm looking for a python library that will help me analyze the audio in wav files. At the very least I'm hoping to find some kind of interface that understands .wav format so that I don't have to :P at best I need a module with methods for reading wave form parameters like pitch, volume levels, etc

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  • How to "uninstantiate" an object?

    - by Mark
    I wrote a function in Python: def instantiate(c): if inspect.isclass(c): return c() elif isinstance(c, object): return c else: raise Exception, '%s is not an object or class.' % c Now I want to do the opposite: get the class from an already instantiated object so that I can re-instantiate it with different parameters. How can I do that?

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  • MVC4 link automatically redirected to default INDEX page/action even if defined action name with controller

    - by Raj Tamakuwala
    i am creating web mobile application in mvc4. My problem is when I click on particular link in my application,it works well, but sometimes it automatically redirected to INDEX page that is set as default page in global.asax as routes.MapRoute( "Default", // Route name "{controller}/{action}/{id}", // URL with parameters new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults ); Now I don't know why its automatically redirected to INDEX page,even if I have already defined controller and action name where it show redirected as, <a href='@(Url.Action( "ActivityWall", "Home"))' > </a> logically it should redirect to "ActivityWall" page,which it does.but sometime only it goes to INDEX page.then when I clear my cookie problem will again solved but after some time it again start redirecting to INDEX page. I also posted question related to cookies issue yesterday,but I think that is nit main issue. can someone help please ?

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  • What languages allow cross-platform native executables to be created?

    - by JT
    I'm frustrated to discover that Java lacks an acceptable solution for creating programs that will run via double-click. Other than .NET for Windows, what modern and high-level programming languages can I write code in that can be compiled for various platforms and run as a native/binary in each (Windows, Linux, OSX (optional)) Assuming I wanted to write code in python, for instance, is there a cohesive way that I could distribute my software which wouldn't require users to do anything special to get it to run? I want to write and distribute software for computer-illiterate and Java has turned out to be a real pain in this respect.

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