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“implements Runnable” vs “extends Thread” in Java
...purer" way to go.
In practical terms, it means you can implement Runnable and extend from another class as well.
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Fastest way to find second (third…) highest/lowest value in vector or column
R offers max and min, but I do not see a really fast way to find another value in the order, apart from sorting the whole vector and then picking a value x from this vector.
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Histogram using gnuplot?
...already has properly binned data. Is there a way to take a list of numbers and have gnuplot provide a histogram based on ranges and bin sizes the user provides?
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How do I use shell variables in an awk script?
...ss external shell variables to an awk script, but I'm confused about ' and " .
7 Answers
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View the Task's activity stack
I just started developing a simple Android application while I'm still learning the platform.
9 Answers
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Disable XML validation in Eclipse
My Eclipse validates XML files every time I save a file and it takes a while to validate them.
The project is created using gwt-maven-plugin.
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Comparing boxed Long values 127 and 128
...s this:
true
false
For the 127L value, since both references (val1 and val2) point to the same object instance in memory (cached), it returns true.
On the other hand, for the 128 value, since there is no instance for it cached in memory, a new one is created for any new assignments for boxe...
How do I pass an object from one activity to another on Android? [duplicate]
I need to be able to use one object in multiple activities within my app, and it needs to be the same object. What is the best way to do this?
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Overriding the java equals() method - not working?
I ran into an interesting (and very frustrating) issue with the equals() method today which caused what I thought to be a well tested class to crash and cause a bug that took me a very long time to track down.
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How do I choose between Tesseract and OpenCV? [closed]
I recently came across Tesseract and OpenCV . It looks like Tesseract is a full-fledged OCR engine and OpenCV can be used as a framework to create an OCR application/service.
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