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How to deal with a slow SecureRandom generator?
...
You should be able to select the faster-but-slightly-less-secure /dev/urandom on Linux using:
-Djava.security.egd=file:/dev/urandom
However, this doesn't work with Java 5 and later (Java Bug 6202721). The suggested work-around is to use:
-Djav...
Is optimisation level -O3 dangerous in g++?
...er versions of GCC have a profile-guided optimization mode that can (IIUC) selectively apply the -O3 optimizations to hot functions -- effectively automating this process.
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Custom attributes - Yea or nay?
...t known. For example, if it is some kind of integer id, we can't very well select for every possible case. We are then left to parse the class attribute manually which is definitely workable, but not as clear in the code, and in some cases, could be very slow (if there are a lot of candidate element...
Count with IF condition in MySQL query
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Use sum() in place of count()
Try below:
SELECT
ccc_news . * ,
SUM(if(ccc_news_comments.id = 'approved', 1, 0)) AS comments
FROM
ccc_news
LEFT JOIN
ccc_news_comments
ON
ccc_news_comments.news_id = ccc_news.news_id
WHERE
`ccc_...
What is the difference between and ?
...m CSS (hyphens: auto), then lang attribute is required to allow browser to select proper set of rules.
– RobertT
Oct 30 '14 at 2:42
1
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How to set the value to a cell in Google Sheets using Apps Script?
... var cell = sheet.getRange("B2");
cell.setValue(100);
}
You can also select a cell using row and column numbers.
var cell = sheet.getRange(2, 3); // here cell is C2
It's also possible to set value of multiple cells at once.
var values = [
["2.000", "1,000,000", "$2.99"]
];
var range = s...
Move branch pointer to different commit without checkout
... they allow. I highly recommend using them for what they're good at (i.e. selectively staging hunks into/out of the index in git gui, and also just committing. (ctrl-s to add a signed-off: line, ctrl-enter to commit.)
gitk is great for keeping track of a few branches while you sort out your chang...
What is the difference between varchar and nvarchar?
... NLS_CHARACTERSET option is set. You may be able to find it with the query SELECT value$ FROM sys.props$ WHERE name = 'NLS_CHARACTERSET'.
If your NLS_CHARACTERSET is a Unicode encoding like UTF8, great. Using VARCHAR and NVARCHAR are pretty much identical. Stop reading now, just go for it. Otherwis...
How do you turn off version control in android studio?
...llowing:
Android Studio > Preferences...
In the Preferences window, select Version Control and under Directory choose VCS dropdown to be <none>
Don't forget to click "Apply" in the general Preferences buttons at the bottom.
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Is there an equivalent of 'which' on the Windows command line?
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This should honestly be selected as the best answer now that it is 2020, since the original answer was posted back in 2008. Times have changed. PowerShell is the way, especially being that this answer is now cross-platform for wherever PowerShell ex...