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How to check if a String is numeric in Java
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With Apache Commons Lang 3.5 and above: NumberUtils.isCreatable or StringUtils.isNumeric.
With Apache Commons Lang 3.4 and below: NumberUtils.isNumber or StringUtils.isNumeric.
You can also use StringUtils.isNumericSpace which returns ...
What exactly are late static bindings in PHP?
...ces a new use for the static keyword, which addresses this particular shortcoming. When you use static, it represents the class where you first use it, ie. it 'binds' to the runtime class.
Those are the two basic concepts behind it. The way self, parent and static operate when static is in play c...
Named capturing groups in JavaScript regex?
...oes not support verbose regexes which would make the creation of readable, complex regular expressions a lot easier.
Steve Levithan's XRegExp library solves these problems.
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Android Studio - How to Change Android SDK Path
...r mac users (at least for android studio 0.2.9): instead of F4, you can do command-; (i.e. File->project Structure). On the left you can change the project's sdk location.
– qix
Oct 16 '13 at 23:53
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External VS2013 build error “error MSB4019: The imported project was not found”
I am building a project through the command line and not inside Visual Studio 2013. Note, I had upgraded my project from Visual Studio 2012 to 2013. The project builds fine inside the IDE. Also, I completely uninstalled VS2012 first, rebooted, and installed VS2013. The only version of Visual Studio ...
How to persist a property of type List in JPA?
...xactly what you need. There's one example here.
Edit
As mentioned in the comments below, the correct JPA 2 implementation is
javax.persistence.ElementCollection
@ElementCollection
Map<Key, Value> collection;
See: http://docs.oracle.com/javaee/6/api/javax/persistence/ElementCollection.htm...
How do I install a NuGet package into the second project in a solution?
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Unloading classes in java?
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Note also that according to java.sun.com/docs/books/jls/second_edition/html/… unloading of classes is an optimization and, depending on the JVM implementation, may or may not actually occur.
– user21037
Feb 18 '10 at 11:5...
C library function to perform sort
...data, the number of elements in that array, the size of each element and a comparison function.
It does its magic and your array is sorted in-place. An example follows:
#include <stdio.h>
#include <stdlib.h>
int comp (const void * elem1, const void * elem2)
{
int f = *((int*)elem1...