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NameError: global name 'xrange' is not defined in Python 3
...nchanged, and any
# range(...) replaced with list(range(...))
or replace all uses of xrange(...) with range(...) in the codebase and then use a different shim to make the Python 3 syntax compatible with Python 2:
try:
# Python 2 forward compatibility
range = xrange
except NameError:
p...
Android ViewPager with bottom dots
...
No need for that much code.
You can do all this stuff without coding so much by using only viewpager with tablayout.
Your main Layout:
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res...
Hibernate lazy-load application design
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As we all known, hibernate tries to be as non-invasive and as transparent as possible
I would say the initial assumption is wrong. Transaparent persistence is a myth, since application always should take care of entity lifecycle ...
Sharing src/test classes between modules in a multi-module maven project
...iques suggested in the comments, I would ensure your Data project contains all the test code that you wish to share and configure the POM to produce a test JAR:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-jar-plugin</artifactId>
<ver...
Difference between android.app.Fragment and android.support.v4.app.Fragment
...lass in the android support library, which is a compatibility package that allows you to use some of the newer features of Android on older versions of Android.
android.app.Fragment is the Fragment class in the native version of the Android SDK. It was introduced in Android 3 (API 11).
If you want...
How do I add a Maven dependency in Eclipse?
I don't know how to use Maven at all. I've been developing for a couple years with Eclipse and haven't yet needed to know about it. However, now I'm looking at some docs that suggest I do the following:
...
Lambda Expression and generic method
...e of [..] T. [..] A lambda expression is congruent with a function type if all of the following are
true:
The function type has no type parameters.
[..]
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How to store standard error in a variable
... do it. You'd have to build the entire pipeline into the sub-shell, eventually sending its final standard output to a file, so that you can redirect the errors to standard output.
ERROR=$( { ./useless.sh | sed s/Output/Useless/ > outfile; } 2>&1 )
Note that the semi-colon is needed (in...
Is it safe to delete a void pointer?
...
It depends on "safe." It will usually work because information is stored along with the pointer about the allocation itself, so the deallocator can return it to the right place. In this sense it is "safe" as long as your allocator uses internal boundary tag...
Why use a ReentrantLock if one can use synchronized(this)?
...time-out. ReentrantLock also has support for configurable fairness policy, allowing more flexible thread scheduling.
The constructor for this class accepts an optional fairness parameter. When set true, under contention, locks favor granting access to the longest-waiting thread. Otherwise this lock...