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How do I determine whether an array contains a particular value in Java?
...s available for primitive arrays of all kinds.
Example:
String[] fieldsToInclude = { "id", "name", "location" };
if ( ArrayUtils.contains( fieldsToInclude, "id" ) ) {
// Do some stuff.
}
share
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How to get the Android device's primary e-mail address
...f all account names on the device. Fortunately, for certain account types (including com.google), the account names are email addresses. Example snippet below.
Pattern emailPattern = Patterns.EMAIL_ADDRESS; // API level 8+
Account[] accounts = AccountManager.get(context).getAccounts();
for (Account...
Use JNI instead of JNA to call native code?
...asses from Java!)
Straightforward type mappings with good use of generics (including much nicer model for Pointers)
Full JNAerator support
works on Windows, Linux, MacOS X, Solaris, Android
As for memory copying, I believe JNA supports direct ByteBuffers, so memory copying can be avoided.
...
What is a C++ delegate?
... library doesn't support it). It is slower, but it is the most flexible.
#include <functional>
std::function<int(double)> f = [can be set to about anything in this answer]
// Usually more useful as a parameter to another functions
Option 6: binding (using std::bind)
Allows setting ...
How to switch to the new browser window, which opens after click on the button?
...n to parent window
driver.switchTo().window(parentHandle);
The above code includes an if-check to make sure you are not switching to the parent window as Set<T> has no guaranteed ordering in Java. WebDriverWait appears to increase the chance of success as supported by below statement.
Quoted ...
Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
...it
A few slight improvements:
The value of the offending property can be included in the inner loop like so:
foreach (var ve in eve.ValidationErrors)
{
Console.WriteLine("- Property: \"{0}\", Value: \"{1}\", Error: \"{2}\"",
ve.PropertyName,
...
What are the benefits of dependency injection containers?
...nefit. I like my applications to be as light on dependencies as possible, including the hefty frameworks.
They simplify the code a lot of the times, but they also have an overhead in complexity that makes tracking down problems rather difficult (I have seen such problems first hand, and straight J...
pip installing in global site-packages instead of virtualenv
...python-pip package with sudo pacman -R python-pip python-reportlab (had to include reportlab to satisfy dependencies) everything started to work as expected. Not sure why, but this is probably due to a double install where the system package is taking precedence.
...
How do I write a correct micro-benchmark in Java?
...e only a limited range of JVM performance characteristics.
Rule 1: Always include a warmup phase which runs your test kernel all the way through, enough to trigger all initializations and compilations before timing phase(s). (Fewer iterations is OK on the warmup phase. The rule of thumb is several ...
Regular expression to match URLs in Java
...n RFC 3987.
* Specifically, those two byte Unicode characters are not included.
*/
public static final String GOOD_IRI_CHAR =
"a-zA-Z0-9\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF";
public static final Pattern IP_ADDRESS
= Pattern.compile(
"((25[0-5]|2[0-4]...