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How to split a string in Java
...matches() instead.
If you'd like to retain the split character in the resulting parts, then make use of positive lookaround. In case you want to have the split character to end up in left hand side, use positive lookbehind by prefixing ?<= group on the pattern.
String string = "004-034556";
Str...
How to set default values in Rails?
I'm trying to find the best way to set default values for objects in Rails.
17 Answers
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How exactly does the android:onClick XML attribute differ from setOnClickListener?
...OnClickListener. And this is the XML implementation.
XML Implementation
<?xml version="1.0" encoding="utf-8"?>
<!-- layout elements -->
<Button android:id="@+id/mybutton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Click me!"
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MongoDB SELECT COUNT GROUP BY
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I need some extra operation based on the result of aggregate function. Finally I've found some solution for aggregate function and the operation based on the result in MongoDB. I've a collection Request with field request, source, status, requestDate.
Single Field Grou...
IOS: create a UIImage or UIImageView with rounded corners
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Yes, it is possible.
Import the QuartzCore (#import <QuartzCore/QuartzCore.h>) header and play with the layer property of the UIImageView.
yourImageView.layer.cornerRadius = yourRadius;
yourImageView.clipsToBounds = YES;
See the CALayer class reference for more info.
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Can jQuery provide the tag name?
...he original HTML DOM element. This works for me.
– Gilthans
May 12 '12 at 19:56
I think this is the exact answer that ...
Why use prefixes on member variables in C++ classes
...o be reserved by Visual C++ 2005 and the clash created some unexpected results.
I am on the fence about how useful it is to mark up local variables.
Here is a link about which identifiers are reserved:
What are the rules about using an underscore in a C++ identifier?
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What's the best way to check if a file exists in C?
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Use stat like this:
#include <sys/stat.h> // stat
#include <stdbool.h> // bool type
bool file_exists (char *filename) {
struct stat buffer;
return (stat (filename, &buffer) == 0);
}
and call it like this:
#include <std...
REST URI convention - Singular or plural name of resource while creating it
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Great answer! But "default" directories in Windows have plural names. Like "Program Files", "Users", "Documents", "Videos" etc. Also I have encountered plural names in website urls much more often.
– Dmitry Gonchar
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How to split one string into multiple strings separated by at least one space in bash shell?
... @Alexandros My approach is to only use patterns, which are secure by-default and working in every context perfectly. A requirement to change shell-globbing to get a secure solution is more than just a very dangerous path, it's already the dark side. So my advice is to never get accustomed to use ...