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Naming of enums in Java: Singular or Plural?

...ably enums in general) should be singular. The thinking is that you're not selecting multiple Protocols, but rather one Protocol of the possible choices in the list of values. Note the absence of plurals: http://docs.oracle.com/javase/tutorial/java/javaOO/enum.html ...
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Best TCP port number range for internal applications [closed]

... Short answer: use an unassigned user port Over achiever's answer - Select and deploy a resource discovery solution. Have the server select a private port dynamically. Have the clients use resource discovery. The risk that that a server will fail because the port it wants to listen on is n...
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How to add new column to MYSQL table?

...r comment it looks like your'e only adding the new column if: mysql_query("SELECT * FROM assessment"); returns false. That's probably not what you wanted. Try removing the '!' on front of $sql in the first 'if' statement. So your code will look like: $sql=mysql_query("SELECT * FROM assessment"); if...
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what is the most efficient way of counting occurrences in pandas?

...].astype('str').stack().value_counts().sum() which equates to setting each selected column to str type, stacking all individual columns on top, forming basically one column and then doing the value_counts() and sum() on that one column. :) Stack is pretty useful, it might not be the most obvious cho...
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remove legend title in ggplot

... Since you may have more than one legends in a plot, a way to selectively remove just one of the titles without leaving an empty space is to set the name argument of the scale_ function to NULL, i.e. scale_fill_discrete(name = NULL) (kudos to @pascal for a comment on another thread) ...
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JavaScript before leaving the page

...er if they want to leave the page or not, you cannot redirect them if they select to stay on the page. If they select to leave, the browser will go where they told it to go. You can use onunload to do stuff before the page is unloaded, but you cannot redirect from there (Chrome 14+ blocks alerts ...
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The opposite of Intersect()

... This code enumerates each sequence only once and uses Select(x => x) to hide the result to get a clean Linq-style extension method. Since it uses HashSet<T> its runtime is O(n + m) if the hashes are well distributed. Duplicate elements in either list are omitted. publi...
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How do I import the javax.servlet API in my Eclipse project?

... Rightclick project and choose Properties. In Targeted Runtimes section, select the integrated server. Either way, Eclipse will then automatically take the servletcontainer's libraries in the build path. This way you'll be able to import and use the Servlet API. Never carry around loose serv...
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How do I resolve configuration errors with Nant 0.91?

... to be performed: before extracting, one must right click on the zip file, select Properties and under the General tab, click the button labelled Unblock, then click OK on the Properties window. Now, extract the file to your desired location, ensure it is on the system path, open a new command line ...
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Is there a Pattern Matching Utility like GREP in Windows?

...d on Windows 7/2008R2, optional for XP/2003/Vista/2008) which includes the select-string cmdlet for this purpose. share | improve this answer | follow | ...