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How to avoid null checking in Java?
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This to me sounds like a reasonably common problem that junior to intermediate developers tend to face at some point: they either don't know or don't trust the contracts they are participating in and defensively overcheck for nulls. Additionally, when writing their own code, they ten...
What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
When should certain image file types be used when building websites or interfaces, etc?
13 Answers
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Remove blank lines with grep
I tried grep -v '^$' in Linux and that didn't work. This file came from a Windows file system.
14 Answers
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What does the C++ standard state the size of int, long type to be?
I'm looking for detailed information regarding the size of basic C++ types.
I know that it depends on the architecture (16 bits, 32 bits, 64 bits) and the compiler.
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Should I always return IEnumerable instead of IList?
When I'm writing my DAL or other code that returns a set of items, should I always make my return statement:
14 Answers
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What is the correct XPath for choosing attributes that contain “foo”?
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//a[contains(@prop,'Foo')]
Works if I use this XML to get results back.
<bla>
<a prop="Foo1">a</a>
<a prop="Foo2">b</a>
<a prop="3Foo">c</a>
<a prop="Bar">a</a>
</bla>
Edit:
Another thi...
What's the rationale for null terminated strings?
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From the horse's mouth
None of BCPL, B, or C supports
character data strongly in the
language; each treats strings much
like vectors of integers and
supplements general rules by a few
conventions. In both BCPL and B a
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What is a Shim?
...pts an API, changing the parameters passed, handling the operation itself, or redirecting the operation elsewhere. Shims typically come about when the behaviour of an API changes, thereby causing compatibility issues for older applications that still rely on the older functionality. In these cases, ...
Deleting a resource using http DELETE
...potent, when I issue the following request, what should happen the second (or third, or fourth, etc...)?
4 Answers
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Is SHA-1 secure for password storage?
..., however it is easy to compute, which means it is easier to mount a bruteforce or dictionary attack. (The same is true for successors like SHA-256.) Depending on the circumstances, a hash function which was designed to be computationally expensive (such as bcrypt) might be a better choice.
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