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new keyword in method signature
...
"Although you can hide members without using the new modifier, you get a compiler warning." per the linked doc. So, the keyword makes it clear you intended the hiding, and the warning is not issued.
– Jim Counts
Mar 6 '1...
Quickly create a large file on a Linux system
... other POSIX systems), we have fallocate, which uses the desired space without having to actually writing to it, works with most modern disk based file systems, very fast:
For example:
fallocate -l 10G gentoo_root.img
sha...
Generating a list of which files changed between hg versions
...tors of y, including x and y themselves. If the first endpoint is
left out, this is equivalent to "ancestors(y)", if the second is left
out it is equivalent to "descendants(x)".
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How to colorize diff on the command line?
...onsider using colordiff. It's a wrapper around diff that produces the same output as diff, except that it augments the output using colored syntax highlighting to increase readability:
diff old new | colordiff
or just:
colordiff old new
Installation:
Ubuntu/Debian: sudo apt-get install col...
NoClassDefFoundError: android.support.v7.internal.view.menu.MenuBuilder
...ivity's onCreate method:
if (isSamsung_4_2_2()) {
setContentView(R.layout.activity_main_no_toolbar);
} else {
setContentView(R.layout.activity_main);
}
As pointed out this is not a definitive solution, it is just a way to allow users to have access to limited functionality while a more pe...
What does git push -u mean?
...o and where you want to pull from, so you can use git pull or git push without arguments. A little bit down, this article explains and demonstrates this concept.
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What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?
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It's normally called base64 encoding, not encryption! The nice thing about base64 encoding is it allows you to represent (binary) data using only a limited, common-subset of the available characters, far more efficiently than just writing a string of 1s and 0s as ASCII for example.
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What does -XX:MaxPermSize do?
Specifically, why would it help to fix a PermGen OutOfMemoryError issue?
3 Answers
3
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Get average color of image via Javascript
...g/count);
rgb.b = ~~(rgb.b/count);
return rgb;
}
For IE, check out excanvas.
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How to programmatically display version/build number of target in iOS app?
... to 1.1, 1.2 and for bug fixes to 1.0.1, 1.0.2 . This number is oriented about releases and new features. It does not have to stop at 9, 1.11.23 is a reasonable version number.
The build number is mostly the internal number of builds that have been made until then. But some use other numbers like t...