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How to get the ThreadPoolExecutor to increase threads to max before queueing?
... ExecutorService thread-pools that so many of us use. To quote from the Javadocs:
9 Answers
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Further understanding setRetainInstance(true)
...ethod.
And the docs link to a very good example - FragmentRetainInstance.java which I have reproduced below for your convenience. It does exactly what I speculated was the answer in my question (if (...findFragmentByTag() == null) { ...).
Finally, I created my own test activity to see exactly wha...
What is a callback function?
...this, the service providers often design APIs using the callback pattern.
JavaScript supports callbacks very nicely e.g. with lambdas and closures. And there is a lot of activity in the JavaScript world, both on the browser as well as on the server. There are even JavaScript platforms being develop...
What is the difference between mocking and spying when using Mockito?
...ks and it was confusing for some users. Read more about spying: here or in javadoc for spy(Object) method.
callRealMethod() was introduced after spy(), but spy() was left there of course, to ensure backward compatibility.
Otherwise, you're right: all the methods of a spy are real unless stubbed. Al...
When to use the different log levels
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About Debug <-> Trace: Note that at least in Java-land, the order of priority is "debug > trace". That's the convention all logging frameworks I know use (SLF4J, Logback, log4j, Apache Commons Logging, Log4Net, NLog). So Debug < Trace seems unusual to me.
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No == operator found while comparing structs in C++
...even within a given program. For entity objects, the solution provided by Java works very well (and of course, you can do exactly the same thing in C++---it's even idiomatic C++ for entity objects). The question is what to do about value objects. C++ provides a default operator= (even if it often...
how to ignore namespaces with XPath
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Take a look at this tutorial: codesimplify.com/java/java-xpath-ignore-namespace-example
– hipokito
Jun 13 '17 at 13:02
1
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In a PHP project, what patterns exist to store, access and organize helper objects? [closed]
...e-have-all-singletons-gone.html
Alternatives
a service provider
http://java.sun.com/blueprints/corej2eepatterns/Patterns/ServiceLocator.html
dependency injection
http://en.wikipedia.org/wiki/Dependency_injection
and a php explanation:
http://components.symfony-project.org/dependency-injection...
Android ImageView Zoom-in and Zoom-Out
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Make two java classes
Zoom class
import android.content.Context;
import android.graphics.Canvas;
import android.graphics.drawable.Drawable;
import android.view.KeyEvent;
import android.view.View;
import android.widget.Button;
import...
Read an Excel file directly from a R script
...ng XLConnect are, in my opinion:
Cross platform. XLConnect is written in Java and, thus, will run on Win, Linux, Mac with no change of your R code (except possibly path strings)
Nothing else to load. Just install XLConnect and get on with life.
You only mentioned reading Excel files, but XLConnec...