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Server is already running in Rails
When I am starting rails server using rails s command it is showing A server is already running. Check C:/Sites/folder/Pids/Server.pids
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Questions every good Java/Java EE Developer should be able to answer? [closed]
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+1 @Jon: I usually subscribe to the "no need to memorize details" school of thought, but if you don't even know the basic conceptual differences between those basic interfaces, then you're definitely not a good Java developer.
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How to pretty print XML from the command line?
Related: How can I pretty-print JSON in (unix) shell script?
8 Answers
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View array in Visual Studio debugger? [duplicate]
Is it possible to view an array in the Visual Studio debugger? QuickWatch only shows the first element of the array.
5 Ans...
Is there a way to simulate the C++ 'friend' concept in Java?
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Here is a small trick that I use in JAVA to replicate C++ friend mechanism.
Lets say I have a class Romeo and another class Juliet. They are in different packages (family) for hatred reasons.
Romeo wants to cuddle Juliet and Juliet wan...
How to use Jackson to deserialise an array of objects
...g documentation indicates that Jackson supports deserialising "Arrays of all supported types" but I can't figure out the exact syntax for this.
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Sync data between Android App and webserver [closed]
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I'll try to answer all your questions by addressing the larger question: How can I sync data between a webserver and an android app?
Syncing data between your webserver and an android app requires a couple of different components on your and...
How can I list the contents of a directory in Python?
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The glob.glob method above will not list hidden files.
Since I originally answered this question years ago, pathlib has been added to Python. My preferred way to list a directory now usually involves the iterdir method on Path objects:
from pathlib import Path
print(*Path("/home/username/www/...
Postgresql: password authentication failed for user “postgres”
I have installed PostgreSQL 8.4, Postgres client and Pgadmin 3. Authentication failed for user "postgres" for both console client and Pgadmin. I have typed user as "postgres" and password "postgres", because it worked before. But now authentication is failed. I did it before a couple of times withou...
Is there an easy way to attach source in Eclipse?
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I'd call this the hard and painful way to attach source. You need to do it every time you include the jar file in every project you use the jar. When you have lots of jars, and lots of projects, that's not good.
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