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Why is exception handling bad?
...e's Go language has no exceptions as a design choice, and Linus of Linux fame has called exceptions crap. Why?
15 Answers
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Git - How to use .netrc file on Windows to save user and password
...possible to use a .netrc file on Windows?
Yes: You must:
define environment variable %HOME% (pre-Git 2.0, no longer needed with Git 2.0+)
put a _netrc file in %HOME%
If you are using Windows 7/10, in a CMD session, type:
setx HOME %USERPROFILE%
and the %HOME% will be set to 'C:\Users\"usern...
How do you configure logging in Hibernate 4 to use SLF4J
...er findProvider() {
// Since the impl classes refer to the back-end frameworks directly, if this classloader can't find the target
// log classes, then it doesn't really matter if they're possibly available from the TCCL because we won't be
// able to find it anyway
final ClassLoader...
Java: notify() vs. notifyAll() all over again
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However (if I do understand the difference between these methods right), only one thread is always selected for further monitor acquisition.
That is not correct. o.notifyAll() wakes all of the threads that are blocked in o.wait() calls. The threads are only allowed to return fr...
Generate a heatmap in MatPlotLib using a scatter data set
...py as np
import numpy.random
import matplotlib.pyplot as plt
# Generate some test data
x = np.random.randn(8873)
y = np.random.randn(8873)
heatmap, xedges, yedges = np.histogram2d(x, y, bins=50)
extent = [xedges[0], xedges[-1], yedges[0], yedges[-1]]
plt.clf()
plt.imshow(heatmap.T, extent=extent,...
What are the applications of binary trees?
...ng what the particular applications of binary trees are. Could you give some real examples?
17 Answers
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Where to use EJB 3.1 and CDI?
...
Yes, you can freely mix both CDI and EJB and achieve some great results. It sounds like you are using @WebService and @Schedule, which are good reasons for adding EJB to the mix.
There's a lot of confusion out there, so here is some general information on EJB and CDI as they re...
Should services always return DTOs, or can they also return domain models?
..., it encapsulates the domain. In other words it protects the domain.
Sometimes service needs to return data object that wasn't defined in the domain
Can you provide an example of this data object?
If we should strictly stick to DTOs, should they be defined in service layer?
Yes, because ...
Should I use Java date and time classes or go with a 3rd party library like Joda Time?
...m all over the world. One type of data which must be stored is dates and times.
5 Answers
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How to configure MongoDB Java driver MongoOptions for production use?
...s for configuring MongoOptions for the MongoDB Java driver and I haven't come up with much other than the API. This search started after I ran into the "com.mongodb.DBPortPool$SemaphoresOut: Out of semaphores to get db
connection" error and by increasing the connections/multiplier I was able to sol...