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• Is it a good idea to use unicode symbols as Java identifiers?

  - by Eric

  I have a snippet of code that looks like this: double ?t = lastPollTime - pollTime; double a = 1 - Math.exp(-?t / t); average += a * (x - average); Just how bad an idea is it to use unicode characters in Java identifiers? Or is this perfectly acceptable?

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• PHP turn off errors - in one file only

  - by Industrial

  Hi! I am well aware about error_reporting(0); & ini_set('display_errors', "Off"); to make error messages go away. What would be an appropriate way to do this - for a specific file or part of code only? Surpressing errors with @'s seems like a bad idea since it apparently slows the code down... Thanks!

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• Setting the size of a ContentPane (inside of a JFrame)

  - by Jim

  Hello, I want to set the size of a JFrame such that the contentPane is the desired size. JFrame.setSize() doesn't take the window decorations into account, so the contentPane is slightly too small. The size of the window decorations are platform and theme specific, so it's bad news to try to manually account for them. JFrame.getContentPane().setSize() fails because it's managed. Ideas? Thanks!

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• new GIT release engineer here, being asked what is the best way to do development with git?

  - by marlene

  I have been searching the web for best practices, but don't see anything that is consistent. If you have an excellent development process that includes successful releases of your product as well as hotfixes/patches and maintenance releases and you use git. I would love to hear how you use git to accomplish this. Do you use branches, tags, etc? How do you use them. I am looking for details, please. Thanks for hosting this great forum. Lost in Gitland

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• Passing around an ElementTree

  - by PulpFiction

  Hello. In my program, I need to make use of an ElementTree object in various functions in my program. More specifically, I am doing this: tree = etree.parse('somefile.xml') I am passing this tree around in my program. I was wondering whether this is a good approach, or can I do this: Create a global tree (I come from a C++ background and I know global is bad) Create the tree again wherever required. Or is my approach ok?

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• IE firing anything else but click

  - by shabunc

  I just wonder is there's any way to fire any event via IE's event-triggering implementation - fireEvent. I've tried to use it but failed with all event except click. The only reason i've get interested with this issue it curiousity, thus, any answers like "just do not trigger events, it is a bad idea" - all such answers would be considered, well...not full))) thanks in advance

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• ASP.NET troubles with updating DataGrid binded to custom DataTable

  - by tadmarsky

  I bind custom DataTable to DataGrid through ObjectDataSource, where i use SelectMethod and UpdateMethod. SelectMethod working great, but when I try to update row it's breaking by MissingMethodException. What should i do to fix this problem? Sorry for my bad english ;)

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• What's the best practice for taking MySQL dump, encrypting it and then pushing to s3?

  - by HalogenCreative

  This current project requires that the DB be dumped, encrypted and pushed to s3. I'm wondering what might be some "best practices" for such a task. As of now I'm using a pretty straight ahead method but would like to have some better ideas where security is concerned. Here is the start of my script: mysqldump -u root --password="lepass" --all-databases --single-transaction > db.backup.sql tar -c db.backup.sql | openssl des3 -salt --passphrase foopass > db.backup.tarfile s3put backup/db.backup.tarfile db.backup.tarfile # Let's pull it down again and untar it for kicks s3get surgeryflow-backup/db/db.backup.tarfile db.backup.tarfile cat db.backup.tarfile | openssl des3 -d -salt --passphrase foopass |tar -xvj Obviously the problem is that this script everything an attacker would need to raise hell. Any thoughts, critiques and suggestions for this task will be appreciated.

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• MySQL: how to index an "OR" clause

  - by JoséMi

  I'm executing the following query SELECT COUNT(*) FROM table WHERE field1='value' AND (field2 = 1000 OR field3 = 2000) There is one index over field1 and another composited over field2&field3. I see MySQL always selects the field1 index and then makes a join using the other two fields which is quite bad because it needs to join 146.000 rows. Suggestions on how to improve this? Thanks

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• Sequential coupling in code

  - by dotnetdev

  Hi, Is sequential coupling (http://en.wikipedia.org/wiki/Sequential_coupling) really a bad thing in code? Although it's an anti-pattern, the only risk I see is calling methods in the wrong order but documentation of an API/class library with this anti-pattern should take care of that. What other problems are there from code which is sequential? Also, this pattern could easily be fixed by using a facade it seems. Thanks

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• What is the difference between a stream and a reader in Java?

  - by Bragaadeesh

  Hi, Today I got this question for which I think I answered very bad. I said stream is a data that flows and reader is a technique where we read from that is a static data. I know this is an awful answer, so please provide me the crisp difference and definitions between these two with example in Java. Thanks.

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• What's the fastest way to brush up on algorithms for a technical interview (on Monday)?

  - by nickl

  I have a technical interview on Monday and they were kind enough to give me a heads-up to brush up on my basic algorithms. It's been years since I looked at that kind of stuff and I'm pretty weak on it to begin with so I generally have a bad feeling about this. What's the best way to review the basics and get some practice in before Monday?

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• Convert numbers to enumeration of strings in bash

  - by User1

  Using bash, I have a list of strings that I want to use to replace an int. Here's an example: day1=Monday day2=Tuesday day3=Wednesday day4=Thursday day5=Friday day6=Saturday day7=Sunday If I have an int, $dow, to represent the day of the week, how do I print the actual string? I tried this: echo ${day`echo $dow`} but get error of "bad substitution". How do I make this work? Note: I can change the $day variables to a list or something.

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• How to integrate wordpress with an existing php homepage ?

  - by user284523

  I have already a site with a single homepage index.php which accepts 2 parameters like http://mydomain.com/index.php?param1=something&param2=somethingelse param2 can be optional I want to install wordpress on the root directory, except for index.php and the above url, I want wordpress to show the blog pages. How to do that either in PHP and/or htaccess ? (I'm very bad at htaccess so I prefer php).

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• what java method takes an int and returns +1 or -1?

  - by David

  what java method takes an int and returns +1 or -1? the criteria for this is weather or not the int is positive or negative. I looked through the documentation but i'm bad at reading it and i can't find it. I know i've seen it somewhere though.

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• Accessing methods of an object put inside a class

  - by Klaus

  Hello, A class A possesses an instance c of a class C. Another class B has to modify c through C::setBlah(); method. Is it bad to create an accessor C getC(); in A and then use A.getC().setBlah() ? Or should I create a method A::setBlah(); that would call C::setBlah(); ? Isn't it annoying if there are several methods like that ?

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• what is wrong with the subs

  - by user352860

  $a = "sad day Good day May be Bad Day "; $a=~s/\w+ \w+/_/gm; print $a; I am trying to subsitue with _ all spaces between words . But its not working . What is wrong with that.

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• MySql TEXT column?

  - by acidzombie24

  I ran this using MySql and it appears to not like TEXT. With SQL server i use nvarchar(max) What should i use in MySQL? In other tables some fields will be descriptions and may be long so ATM i am thinking fixed length is bad. create table if not exists misc_info ( id INTEGER PRIMARY KEY AUTO_INCREMENT NOT NULL, key TEXT UNIQUE NOT NULL, value TEXT NOT NULL)ENGINE=INNODB;

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• Why doesn't this C++ code work? [closed]

  - by Jon Skeet

  Here is it: #include <iostream> using namespace std; int main() { int * m; cout << *m; } I know it's bad, but why?

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• C++: Pointers and scope

  - by oh boy

  int* test( ) { int a = 5; int* b = &a; return b; } Will the result of test be a bad pointer? As far as I know a should be deleted and then b would become a messed up pointer, right? How about more complicated things, not an int pointer but the same with a class with 20 members or so?

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• Prevent <img> tags in HTML from wrapping

  - by IL CARTOLAiO

  Hi all, I have a javascript that dynamically creates many <img> tags, and appends them to various divs. I want to prevent these images from wrapping; when the screen resolution is not enough to contain them the browser should create horizontal scroll-bars. Sorry for this bad English.

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• Is it okay to use array[key] in PHP?

  - by terrani

  Hi, I have a simple question. Is it okay to use array without single or double quotion like $array[key]? I thought it is bad because PHP look for constant first if I don't use single or doulbe quotion. One of my colleagues told me that it does not matter. WHat do you guys think?

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• make emacs stop asking "Active processes exist; kill them and exit anyway"

  - by Adam

  Hello, In spite of all the advice that it is a bad idea, I still would like Emacs to stop asking me "Active processes exist; kill them and exit anyway" when I hit C-c C-x. I would like it to simply kill all active processes without asking. How can I accomplish this? Thanks, a

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• How can I use && in if in Ruby on Rails?

  - by Angela

  I tried the following && conditional for my if statement and I get a "bad range" error: <% if (from_today(contact, call.days) == 0..7) && (show_status(contact, call) == 'no status') %> Why and how can I fix it? The only other way I could do it was to have a second nested if statement and break it apart...not pretty :(

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• Resco: AdvancedList and PNG images

  - by Poku

  Hey When i use PNG images in my AdvancedList they are shown in very bad quality in the designer and when i deloy the project in the emulator the transparency disappears completely. Is Resco not cabable of showing png images or what is the problem here?

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