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java.lang.OutOfMemoryError: Java heap space
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If you want to increase your heap space, you can use java -Xms<initial heap size> -Xmx<maximum heap size> on the command line. By default, the values are based on the JRE version and system configuration. You can find out mor...
Understanding NSRunLoop
... run loop is an abstraction that (among other things) provides a mechanism to handle system input sources (sockets, ports, files, keyboard, mouse, timers, etc).
Each NSThread has its own run loop, which can be accessed via the currentRunLoop method.
In general, you do not need to access the run lo...
Is it a bad practice to use an if-statement without curly braces? [closed]
...m with the first version is that if you go back and add a second statement to the if or else clauses without remembering to add the curly braces, your code will break in unexpected and amusing ways.
Maintainability-wise, it's always smarter to use the second form.
EDIT: Ned points this out in the ...
Empty Visual Studio Project?
Is there a way to have an empty Project in Visual Studio 2008 or 2010? I do not mean an empty solution, I mean an empty project in a solution. Basically I have a solution with multiple projects, and I want to add a project to track some static files that are part of the solution but not of any speci...
com.jcraft.jsch.JSchException: UnknownHostKey
I'm trying to use Jsch to establish an SSH connection in Java. My code produces the following exception:
12 Answers
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What is the difference between JDK and JRE?
...E is the Java Runtime Environment. It is a package of everything necessary to run a compiled Java program, including the Java Virtual Machine (JVM), the Java Class Library, the java command, and other infrastructure. However, it cannot be used to create new programs.
The JDK is the Java Development...
Git repository broken after computer died
My computer went dead and now one of my git repositories is broken. When I try to checkout master it tells me:
15 Answers
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How to call an external command?
...ew processes and retrieving their results; using that module is preferable to using this function [os.system()].
The Replacing Older Functions with the subprocess Module section in the subprocess documentation may have some helpful recipes.
For versions of Python before 3.5, use call:
import sub...
Undo git update-index --assume-unchanged
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To get undo/show dir's/files that are set to assume-unchanged run this:
git update-index --no-assume-unchanged <file>
To get a list of dir's/files that are assume-unchanged run this:
git ls-files -v|grep '^h'
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What is the !! (not not) operator in JavaScript?
I saw some code that seems to use an operator I don't recognize, in the form of two exclamation points, like so: !! . Can someone please tell me what this operator does?
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