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How to encrypt String in Java
...g
Do not use this as some kind of security measurement.
The encryption mechanism in this post is a One-time pad, which means that the secret key can be easily recovered by an attacker using 2 encrypted messages. XOR 2 encrypted messages and you get the key. That simple!
Pointed out by Moussa
I am ...
WiX tricks and tips
...es re-use, variables are faster to find and (if needed) allows for easier manipulation by an external tool.
Define Platform variables for x86 and x64 builds
<!-- Product name as you want it to appear in Add/Remove Programs-->
<?if $(var.Platform) = x64 ?>
<?define ProductName = "Pr...
How to write iOS app purely in C
I read here Learn C Before Objective-C?
4 Answers
4
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Asking the user for input until they give a valid response
...her
You can extend this idea to make a very generic input function:
def sanitised_input(prompt, type_=None, min_=None, max_=None, range_=None):
if min_ is not None and max_ is not None and max_ < min_:
raise ValueError("min_ must be less than or equal to max_.")
while True:
...
Difference between Char.IsDigit() and Char.IsNumber() in C#
What's the difference between Char.IsDigit() and Char.IsNumber() in C#?
3 Answers
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Microsecond timing in JavaScript
Are there any timing functions in JavaScript with microsecond resolution?
4 Answers
4
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Eclipse Workspaces: What for and why?
...e export/import feature so you can setup new workspaces and import your organizations or personal preferences and other settings.
– Duncan Krebs
Sep 21 '13 at 20:40
1
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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?
...it with a SHA1 specific to your repo, username, email, date of creation (meaning the SHA1 of the commit itself will be different every time).
But the tree referenced by that commit will be 4b825dc642cb6eb9a060e54bf8d69288fbee4904, the empty tree SHA1.
git log --pretty=raw
commit 9ed4ff9ac204f20f82...
Why is transposing a matrix of 512x512 much slower than transposing a matrix of 513x513?
...e the wiki entry on caching, I'm gonna narrow it down here.
A cache is organized in sets and lines. At a time, only one set is used, out of which any of the lines it contains can be used. The memory a line can mirror times the number of lines gives us the cache size.
For a particular memory addres...
How to convert a number to string and vice versa in C++
...options you should go back to the C++03 stringsream option and use stream manipulators, as explained in an other answer here.
As noted in the comments these functions fall back to a default mantissa precision that is likely not the maximum precision. If more precision is required for your applicat...