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Storing SHA1 hash values in MySQL
... of the bytea type. Which is "1 or 4 bytes plus the actual binary string". What the "1 or 4" refers to could be the length of the data stored, since you cannot use a zero byte to end the string as you do with varchar. That implies, but isn't stated in the manual, that you can store up to 2^(8*4) or ...
Difference between Activity Context and Application Context
...ose calls. If you show the exact error message, might be able to point to what exactly it needs.
But in general, use the activity context unless you have a good reason not to.
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Git: list only “untracked” files (also, custom commands)
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Perfect! What does the ! mean at the beginning of the alias line, or where is that documented?
– We Are All Monica
Sep 27 '10 at 6:31
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Mercurial error: abort no username supplied
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The big problem for me (and what brought me to this question) was the fact none of this is mentioned on the quick start page: mercurial.selenic.com/quickstart/#. That page implies that a basic install followed by following the instructions will work, an...
Breaking out of a nested loop
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Goto itself isn't ugly. What is ugly is abusing goto which results in spaghetti code. Using goto to break out of nested loop is perfectyly ok. Besides, note that all break, continue and return, from structural programming point of view, are hardly b...
Multi-project test dependencies with gradle
...ifact configuration for ProjectA:
task myTestsJar(type: Jar) {
// pack whatever you need...
}
configurations {
testArtifacts
}
artifacts {
testArtifacts myTestsJar
}
and add the testCompile dependency for ProjectB
apply plugin: 'java'
dependencies {
compile project(':ProjectA')
tes...
How can you undo the last git add?
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... Ah, I see what is happening for me. I did not have anything for HEAD to point to yet and so git reset failed (because it operates on the HEAD).
– Francis Davey
Jan 23 '14 at 18:04
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Tuples( or arrays ) as Dictionary keys in C#
...ng. I tried using arrays as keys, but that did not work, and I don't know what else to do. At this point I am considering making a Dictionary of Dictionaries of Dictionaries, but that would probably not be very pretty to look at, though it is how I would do it in javascript.
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How to add border radius on table row
...der so the tr can display the style I give. I'll try the class method. but what about margin? i tried using border-spacing to display margins between rows, but that isn't the best way to do that, I believe....
– Henson
Nov 4 '10 at 5:53
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Format Float to n decimal places
...https://docs.oracle.com/javase/8/docs/api/java/text/DecimalFormat.html
So what you need to do is (for instance):
NumberFormat formatter = NumberFormat.getInstance(Locale.US);
formatter.setMaximumFractionDigits(2);
formatter.setMinimumFractionDigits(2);
formatter.setRoundingMode(RoundingMode.HALF_U...