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• How do I most efficienty check the unique elements in a list?

  - by alex

  let's say I have a list li = [{'q':'apple','code':'2B'}, {'q':'orange','code':'2A'}, {'q':'plum','code':'2A'}] What is the most efficient way to return the count of unique "codes" in this list? In this case, the unique codes is 2, because only 2B and 2A are unique. I could put everything in a list and compare, but is this really…

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• How to enable core dump in my Linux C++ program

  - by Alex Farber

  My program is written in C++. compiled with gcc, using -g3 -O0 -ggdb flags. When it crashes, I want to open its core dump. Does it create core dump file, or I need to do something to enable core dump creation, in the program itself, or on computer where it is executed? Where this file is created, and what is its name?

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• How do I use python to hit this command and return the result?

  - by alex

  $whois abc.com I want to use python to hit this command, and then give the result as a String of text. How can I do that?

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• Getting input in system() function (Mac)

  - by Alex

  #include <iostream> using namespace std; int main() { short int enterVal; cout << "enter a number to say: " << endl; cin >> enterVal; system("say "%d"") << enterVal; return 0; } Is what I am currently trying. I want the user to enter a number and the system() function says it basically. The…

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• Just how much do I want to make virtual?

  - by Alex

  I am writing an abstract superclass where literally every method is going to be overridden. There is some default functionality I could implement, but most of the time it's enough to leave the implementation to the subclass writer. Since just about every method is going to be overwritten, how much should I make virtual and how much should I…

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• What is a good way for a custom accessory view in a UITableViewCell to message the table view contro

  - by Alex Gosselin

  Hi Everyone, I am working on adding a custom accessory view, (a button) to a UITableViewCell, and I need it to tell the table view when it is touched, but I can't figure out how to communicate to the table view what button was pressed. Ideally I'd like to somehow call a function like this: [controller tableView:view…

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• Ensure that text doesn't crop in a scroll view

  - by alex

  With a long but plain html document opened on a mobile device (webkit), how do I ensure that text doesn't crop vertically when scrolling? I think this should be possible by either adjusting line spacing or adding extra padding. TIA.

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• Problem with underscore(_) in Collections.binarySearch (Java)

  - by Alex Cheng

  Hi all. Problem: I am using Java Tutorials™ sourcecode for this. This is the source code. I tried this: --following with another section of sorted words-- words.add("count"); words.add("cvs"); words.add("dce"); words.add("depth"); --following with another section of sorted words-- and it works perfectly.…

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• Having trouble using jQuery's .animate() to animate a div from left to right, right to left?

  - by Alex

  Hello, I seem to be having difficulties using jQuery .animate() to animate an absolutely positioned div from right to left on a button click, and left to right on another button click. I was wondering if you would be willing to help me understand what I'm doing wrong? Thanks. Below is my relevant CSS, HTML, and…

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• Get home directory in Linux, C++

  - by Alex Farber

  I need a way to get user home directory in C++ program running on Linux. If the same code works on Unix, it would be nice. I don't want to use HOME environment value. AFAIK, root home directory is /root. Is it OK to create some files/folders in this directory, in the case my program is running by root user?

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• Difference between HTML and PHP

  - by Alex

  I know that HTML is viewed on the client side and PHP is on the server side. I guess I want to know why they use different things. Why doesn't the client just view a php file?

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• How would I best make this SEO_able?

  - by alex

  I have a search engine that searches albums. For each music album, I have a page. So, the work flow goes like this: People search for music titles The search engine displays a list of albums. People click on an album to go to a details page. I want google to index my front page and the details page. I want…

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• Regex to compare 2 dates in javascript

  - by Alex

  Hello, is there a good regex expression that would be able to compare two dates like 3/27/2010 to 3/8/2010 to tell if the first date is greater then the second date? I'd like to compare using javascript

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• how to get the PageFormat from a Java.awt.print.PrinterJob

  - by Alex

  Hi, I'm trying to use the PageFormat information to modify my javax.swing based printout prior to printing it. I am stumped as to how I can get the PageFormat from the PrintJob (which is obtained using getPrinterJob() and printDialog()). I know there is the getPageFormat method, but I can't figure out how to…

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• ActionScript JPGEncoder +bad quality of the image

  - by Alex

  I have noticed that the quality of the images produced by the JPEGEncoder does not match that of other encoders available (i.e. php's built in image compression functions from the gd library) Any explanation ? or hints/workarounds for improving the quality of compressed images by JPEGEncoder ??

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• In a Windows forms application, how can I use a listbox in a DataGridView coloumn instead of a combo

  - by Alex

  I'm working on a windows forms application that uses a DataGridView. Some of the cells contain a DataGridViewComboBox. In some cases, I have several values to display in the combobox. For that scenario, it would be better to use a ListBox instead of a ComboBox. Is it possible to use a multi-column listbox…

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• When is it necessary to override Equals() in a .NET class?

  - by Alex Angas

  .NET contains its own equality comparison functionality, however I don't really understand how it works. If the desired Equals() and == behaviour is to verify that every field of an object is equal to every field of another object, is it necessary to override Equals() with a method that does this…

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• Why is the clone() method protected in java.lang.Object?

  - by Alex N.

  What is the specific reason that clone() is defined as protected in java.lang.Object?

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• Empty files generated from running `mysqldump` using PHP

  - by alex

  I keep getting empty files generated from running $command = 'mysqldump --opt -h localhost -u username -p \'password\' dbname > \'backup 2009-04-15 09-57-13.sql\''; command($command); Anyone know what might be causing this? My password has strange characters in it, but works fine with…

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• Getting compilation timestamp of a java class

  - by Alex Kravets

  Is it possible to reliably determine the compilation time stamp of a given class for both java applications running locally and as applets and/or JNLP webapps ?

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• Are there any production quality JSF 2 implementations yet?

  - by Alex Argo

  Are there any production quality JSF 2 implementations yet? If so what are they?

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• Formatting currency within a specific precision range

  - by Alex Prose

  I am trying to format currency that will always contain 2 decimal digits, but if there are extra digits of accuracy to display up to five. As an example: for value = 5.0 display: $5.00 for value = 5.023 display: $5.023 for value = 5.333333333333333 display: $5.33333 I have been…

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• Differences between Visual Studio Modes (General, Web Dev, C#)?

  - by Alex

  Hello, what exactly are the differences between the different Visual Studio install modes (General, Web Development, C#)? This is also confusing because I do Web Development in C#. Which one should I use?

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• Opening new window in HTML for target="_blank"

  - by alex

  <a href="facebook.com/sharer" target="_blank" >Share this</a> How do I make this a certain width and height, in a new window, when the user clicks on it? In firefox, the current code only opens up a new tab (not a new window)

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• More than one unique key for HashMap problem (Java)

  - by Alex Cheng

  This question is a continuation of this thread: In short: To solve my problem, I want to use Map<Set<String>, String>. However, after I sort my data entries in Excel, remove the unnecessary parameters, and the following came out: flow content ==> content content …

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