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Is null an Object?
...case - any method invocation on a null results in a NullPointerException.
And this is what the Java Language Specification has to say on this topic:
There is also a special null type, the
type of the expression null, which has
no name. Because the null type has no
name, it is impossible t...
How dangerous is it to access an array out of bounds?
...? It can sometimes happen that I read from outside the array (I now understand I then access memory used by some other parts of my program or even beyond that) or I am trying to set a value to an index outside of the array. The program sometimes crashes, but sometimes just runs, only giving unexpect...
`staticmethod` and `abc.abstractmethod`: Will it blend?
In my Python app I want to make a method that is both a staticmethod and an abc.abstractmethod . How do I do this?
4 Ans...
The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead [dupl
...ions named with the prefix mysql_, was officially deprecated in PHP v5.5.0 and removed in PHP v7.
It was originally introduced in PHP v2.0 (November 1997) for MySQL v3.20, and no new features have been added since 2006. Coupled with the lack of new features are difficulties in maintaining such old...
Java Annotations
... in Java? I have this fuzzy idea of them as somewhere in between a comment and actual code. Do they affect the program at run time?
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How to correctly close a feature branch in Mercurial?
...e branch feature-x . I want to merge results back to the default branch and close feature-x in order to get rid of it in the output of hg branches .
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Maintain git repo inside another git repo
...r Git repository. This lets you clone another repository into your project and keep your commits separate.
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Internal vs. Private Access Modifiers
What is the difference between the internal and private access modifiers in C#?
7 Answers
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How do I escape characters in c# comments?
...can not write a proper example since I don't know how to escape the < and > characters. Do I have to use &lt; and &gt; ? I don't like if that is the case since I want to make it easy to read the comment in the actual document so I don't have to generate some kind of code documen...
Difference between HTML “overflow : auto” and “overflow : scroll”
...g the overflow property's values, I came across these two values: auto and scroll , which adds scrollbar(s) if the content overflows the element.
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