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Why are C# interface methods not declared abstract or virtual?
...f. In the CIL the method will be private (!) but it will still be callable from outside the class from a reference to the corresponding interface type. Explicit implementations are also non-overridable. This is possible because there's a CIL directive (.override) that will link the private method to...
How to establish a connection pool in JDBC?
...d too much problems with DBCP under heavy load. Using C3P0 is dead simple. From the documentation:
ComboPooledDataSource cpds = new ComboPooledDataSource();
cpds.setDriverClass( "org.postgresql.Driver" ); //loads the jdbc driver
cpds.setJdbcUrl( "jdbc:postgresql://localhost/testdb" );
cpds.setUser(...
Finding local IP addresses using Python's stdlib
...e IP address instead of a domain name -- it must be faster and independent from DNS availability. E.g. we can use 8.8.8.8 IP -- Google's public DNS server.
– wobmene
Apr 16 '12 at 12:27
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When does invoking a member function on a null instance result in undefined behavior?
...tly stated. (Notes are non-normative.)
However, one can try to deduced it from §3.10/2:
An lvalue refers to an object or function.
When dereferencing, the result is an lvalue. A null pointer does not refer to an object, therefore when we use the lvalue we have undefined behavior. The proble...
What is the performance of Objects/Arrays in JavaScript? (specifically for Google V8)
...ubes describing the inner workings of chrome itself (like when it switches from a linkedlist array to a fixed array, etc), and how to optimize them. See GDC 2012: From Console to Chrome for more.
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No Persistence provider for EntityManager named
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Apart from this, I also had to move up from hibernate-entitymanager-3.4.0.GA to 3.6.10.Final. Just in case you still have a legacy codebase using Hibernate 3.
– Javi Vazquez
Sep 17 '15 at 5:37...
Rename all files in directory from $filename_h to $filename_half?
...me [options] expression replacement file..., on CentOS 7 , version: rename from util-linux 2.23.2
– tymik
Oct 20 '15 at 8:58
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How to put the legend out of the plot
...Python Plotting With Matplotlib (Guide)
import matplotlib.pyplot as plt
from matplotlib.font_manager import FontProperties
fontP = FontProperties()
fontP.set_size('xx-small')
p1, = plt.plot([1, 2, 3], label='Line 1')
p2, = plt.plot([3, 2, 1], label='Line 2')
plt.legend(handles=[p1, p2], title='...
Intellij IDEA Java classes not auto compiling on save
Yesterday I switched to IntelliJ IDEA from Eclipse.
18 Answers
18
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Why does git-rebase give me merge conflicts when all I'm doing is squashing commits?
...ove on. (Of course, you can resolve them again by checking out the version from the original merge commit.)
If you happen to have rerere enabled in your repo (rerere.enabled set to true), this will be way easier - git will be able to reuse the recorded resolution from when you originally had the co...