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• mantissa and exponent to decimal conversion in java?

  - by GK

  I am trying to print a double value in my java code. but it is printing in matissa and exponent format which I dont want to. ie for example: instead of printing 1234567 it is printing 1.234567E6 how to avoid that.

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• How UPDATE and SELECT at the same time

  - by xRobot

  I need to update some rows of the tables and then display these rows. Is there a way to do this with one single query and avoid this 2 query ? : UPDATE table SET foo=1 WHERE boo=2 SELECT * from table WHERE ( foo=1 ) AND ( boo=2 )

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• C: performance of assignments, binary operations, et cetera...

  - by Shinka

  I've heard many things about performance in C; casting is slow compared to normal assignments, functional call is slow, binary operation are much faster than normal operations, et cetera... I'm sure some of those things are specific to the architecture, and compiler optimization might make a huge difference, but I would like to see a chart to get a general idea what I should do and what I should avoid to write high-performance programs. Is there such a chart (or a website, a book, anything) ?

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• Is there any analog of TCPvcon which allows to close TCP connection on remote machine?

  - by Miollnyr

  Hi, I started to use SysInternals suite, and it is great. But I wonder, whether there is any analog of TCPvcon, which allows to logon to remote machine, like psexec does, and then get list of TCP connections from there (similar to pslist functionality), and then to close some of connections (similar to pskill functionality). I am speaking about windows console tools and I would like to avoid installing something on remote machine is this is possible.

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• DRY up Ruby ternary

  - by Reed G. Law

  I often have a situation where I want to do some conditional logic and then return a part of the condition. How can I do this without repeating the part of the condition in the true or false expression? For example: ClassName.method.blank? ? false : ClassName.method Is there any way to avoid repeating ClassName.method? Here is a real-world example: PROFESSIONAL_ROLES.key(self.professional_role).nil? ? 948460516 : PROFESSIONAL_ROLES.key(self.professional_role)

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• In Bash, how do you access command line arguments inside a function?

  - by DonGar

  I'm attempting to write a function in bash that will access the scripts command line arguments, but they are replaced with the positional arguments to the function. Is there any way for the function to access the command line arguments if they aren't passed in explicitly? # Demo function function stuff { echo $0 $* } # Echo's the name of the script, but no command line arguments stuff # Echo's everything I want, but trying to avoid stuff $*

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• I have the URL www.something.com/HereWeGo, I want to get HereWeGo without the 404 error

  - by Jean

  Hello, Consider the URL www.something.com/HereWeGo. When someone enters the url, the site shows a 404 error since the directory does not exists. I can parse the URL to get the query and HereWeGo, but cannot stop it from going to a 404 error. How can I achieve it by PHP, if it is possible to avoid .htaccess now Thanks Jean

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• Why use an event cache with epoll_wait?

  - by user1827356

  Question: epoll man page has some pointers when using epoll with an 'event cache'. But, why would you need to maintain an event cahce at all - Isn't this the same as what epoll is supposed to be doing? Is it to avoid making multiple epoll_wait calls which might be slower than managing the events in user space? Is it to implement a custom 'priority' scheme over the cached events? Background: I'm trying to understand the strengths/shortcomings of epoll and its applicability to different situations

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• Is it bad to throw exceptions to trigger server errors, eg. 404 Page Not Found?

  - by Pheter

  I am working on a PHP framework and am currently designing error handling. Based on what I have read on SO, I should only use exceptions for, well, exceptional situations. Therefore throwing an exception when an incorrect password is entered is wrong. Should I avoid using exceptions when I want to trigger a server error? If so, should I write my own error handling class?

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• Blackberry (Java) - Setting scrolling be not focused on objects on the screen

  - by paullb

  I have a mainscreen which currently scrolls (and I have the arrows on the right) but the scrolling seems to be focused on the ButtonField objects that I have on the page. Is there any way to set the scrolling to be non-focused scrolling (moving a few pixels each time). Is there a way to set this? Other ideas I have had (which sound hacky so I want to avoid): - Placing NullFields around to scroll - Manually listening to the trackwheelRoll event and moving appropriately

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• replace special characters in string in java

  - by zahir

  I want to know how to replace the string in Java. E.g. String a = "adf?sdf"; How can I replace and avoid special characters?

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• Checklist for writing copy constuctor and assignment operator in C++

  - by abababa22

  Please write a list of tasks that a copy constructor and assignment operator need to do in C++ to keep exception safety, avoid memory leaks etc.

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• How can I return something early from a block?

  - by ryeguy

  If I wanted to do something like this: collection.each do |i| return nil if i == 3 ..many lines of code here.. end How would I get that effect? I know I could just wrap everything inside the block in a big if statement, but I'd like to avoid the nesting if possible.

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• Substitute for exception causes in Java ME

  - by Casebash

  In Java SE it is possible set the cause of an exception using initCause to avoid losing information about the error when catching and rethrowing an exception. Is it possible to do the same in Java ME?

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• Attribute to skip over statement in unit test c#

  - by Eli Perpinyal

  I am looking to skip a certain statement in my unit tests eg: if (MessageBox.Show("Are you sure you want to remove " + contact.CompanyName + " from the contacts?", "Confirm Delete", MessageBoxButton.YesNo, MessageBoxImage.Question, MessageBoxResult.Yes) == MessageBoxResult.Yes) is there an attribute i can place above the statement to avoid the unit test executing it?

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• Android - Volume Buttons used in my application

  - by Iuliu Atudosiei

  Hi, I need to use volume buttons to control a variable parameter in my application. I use Activity.onKeyDown to get notified when the button is pressed but the media volume is also increased. Android is doing something like below when I press the volume key: 1. increase media / ringtone volume 2. pass the event to my application Is there a way to avoid increasing the system volume and use volume key only for my application ? Thanks

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• If I add a public method to a C# class, do I need to recompile other assemblies using that type?

  - by Adal

  Question in the title. I'd like to avoid recompiling since the source code I'm modifying is third party and I'd like to use the original binaries where possible, and replace only the assembly which contains the class I modified. But I'm not sure if this is a safe thing to do. In C++ for example this is definitely a bad idea.

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• Secure automated SSH/SFTP after reboot

  - by mozillalives

  I need to give a daemon ssh access to a particular server. Currently I have it setup to use ssh keys and a keychain, but the trouble with this method is if a reboot occurs. Unless I'm missing something, I would need to login after a system reboot and add the key to the keychain. Is there a way I could avoid/automate this? I'm considering using expect if I can't find any other way.

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• how to load a file into a blob without loading into RAM first?

  - by Ace Grace

  Hi, I am using C# and I am having trouble loading large files into a binary field use byte arrays. Basically, if I load a file that is too large, I get memory problems. Is there a way to load a file into a binary field without using large amounts of ram, i.e. avoid loading the file into memory first? If it helps, I am using Advantage Database Server and this is using a winforms app not a web app. Regards

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• Databases: Migrate data between MS Access DB and MYSQL

  - by Dean

  Hello, I have 2 databases, one is MS Access DB from an old website, and the other one is MYSQL from the new Joomla+VirtueMart based website. I need to migrate existing products from MS Access to MYSQL. I thought of putting both on server and writing SQL queries in MYSQL workbench, untill I have a good script for that, but I'm very new to SQL, so I'd rather avoid that. I there a better way and more efficient for that?

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• Read a file from line X to line Y ?

  - by thedp

  Hello, Is there a way to read a file in PHP5 from line X to line Y into a string, without reading the entire file. I would like to return huge files (10,000+ lines) using ajax requests. Each request will provide the client with additional lines. And due to the fact that the file can reach large sizes, I would like to avoid reading it whole over and over again. Thank you.

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• Django i18n and SEO

  - by etam

  Hi, how do you prepare i18n in your websites? I mean what do you do avoid the situation when you search for i18ned websites in Polish you get English description cause English is the default one. Thanks in advance, Etam.

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• flex text rotation

  - by Thomas

  Hi folks, after rotating a label in flex the text still is a little bit blurry. I've made up a small example to show what I mean: http://pixelpilots.de/dev/testThings/ How can I avoid this? Thanks for any help!!

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• Issue in CheckedChanged event

  - by Gaddigesh

  I have a check box and I have subscribed for the CheckedChanged event. The handler does some operations in there. I check and uncheck the checkbox programmatically (ex: chkbx_Name.Checked = true), and the CheckedChanged event gets fired. I want this event to be fired only when I manually check or uncheck it. Is there any way to avoid firing of this event when i check/uncheck it programmatically?

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• mySQL: Knowing when to UPDATE and when to INSERT?

  - by thedp

  Hello, I'm still quite a mySQL newbie, so I would like to do this right to avoid future mishaps. What is the right way to detect when do I need to UPDATE an entry in a table or INSERT a new one? Thank you.

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