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Passing a String by Reference in Java?
... "";
void fillString(String[] zText) { zText[0] += "foo"; }
From a performance point of view, the StringBuilder is usually the best option.
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Keep the window's name fixed in tmux
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For people using byobu, you should actually change ~/.byobu/.tmux.conf.
– ostrokach
Apr 20 '18 at 21:06
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What's up with Java's “%n” in printf?
I'm reading Effective Java and it uses %n for the newline character everywhere. I have used \n rather successfully for newline in Java programs.
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get dictionary value by key
...ile", out xmlfile)) {
// the key isn't in the dictionary.
return; // or whatever you want to do
}
// xmlfile is now equal to the value
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How to extract filename.tar.gz file
... archive is a tar, not a GZip archive.
Unpack a tar without the z, it is for gzipped (compressed), only:
mv filename.tar.gz filename.tar # optional
tar xvf filename.tar
Or try a generic Unpacker like unp (https://packages.qa.debian.org/u/unp.html), a script for unpacking a wide variety of archiv...
Best way for a 'forgot password' implementation? [closed]
I'm looking for the best method to implement a "forgot password" feature.
10 Answers
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Controlling a USB power supply (on/off) with Linux
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Note. The information in this answer is relevant for the older kernels (up to 2.6.32). See tlwhitec's answer for the information on the newer kernels.
# disable external wake-up; do this only once
echo disabled > /sys/bus/usb/devices/...
Does Ruby regular expression have a not match operator like “!~” in Perl?
I just want to know whether ruby regex has a not match operator just like !~ in perl. I feel it's inconvenient to use (?!xxx) or (?<!xxxx) because you cannot use regex patterns in the xxx part.
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presentModalViewController:Animated is deprecated in ios6
I am using the following code for an image picker. But when I run it in the simulator, I have a memory leak and I get a warning about presentModalViewcontroller:animated being deprecated in iOS6. I also get dismissModalViewController:animated deprecated. I'm using the SDK 6.1.
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Understand homebrew and keg-only dependencies
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For a software to be "keg-only" means it is installed in /usr/local/Cellar but not linked into places like /usr/local/bin, /usr/local/lib, etc. That means other software that depends on it has to be compiled with specific inst...