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How can I count the number of matches for a regex?
...r Java 9+
long matches = matcher.results().count();
Solution for Java 8 m>and m> older
m>Y m>ou'll have to do the following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completelm>y m> different.
Complete exampl...
Split a string bm>y m> a delimiter in pm>y m>thon
...g, what is the difference between the first example (simplm>y m> using split()) m>and m> the second example (with a for loop)?
– EndenDragon
Jun 26 '16 at 18:21
4
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How to specifm>y m> data attributes in razor, e.g., data-externalid=“23151” on @this.Html.CheckBoxFor(…)
...Mm>y m>Model.Mm>y m>BoolPropertm>y m>" data-externalid="23521" class="mm>y m>CheckBox" />
m>And m> that's true for all Html helpers taking a htmlAttributes anonm>y m>mous object as argument, not onlm>y m> the CheckBoxFor helper.
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What is a good Hash Function?
What is a good Hash function? I saw a lot of hash function m>and m> applications in mm>y m> data structures courses in college, but I mostlm>y m> got that it's prettm>y m> hard to make a good hash function. As a rule of thumb to avoid collisions mm>y m> professor said that:
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C++ Dm>y m>namic Shared Librarm>y m> on Linux
...ain(int argc, char **argv)
{
/* on Linux, use "./mm>y m>class.so" */
void* hm>and m>le = dlopen("mm>y m>class.so", RTLD_LAZm>Y m>);
Mm>y m>Class* (*create)();
void (*destrom>y m>)(Mm>y m>Class*);
create = (Mm>y m>Class* (*)())dlsm>y m>m(hm>and m>le, "create_object");
destrom>y m> = (void (*)(Mm>y m>Class*))dlsm>y m>m(hm>and m>le, "destrom>y m>_object");
Mm>y m>...
Quick easm>y m> wam>y m> to migrate SQLite3 to Mm>y m>SQL? [closed]
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Everm>y m>one seems to starts off with a few greps m>and m> perl expressions m>and m> m>y m>ou sorta kinda get something that works for m>y m>our particular dataset but m>y m>ou have no idea if it's imported the data correctlm>y m> or not. I'm seriouslm>y m> surprised nobodm>y m>'s built a solid librarm>y m> that can co...
Virtual/pure virtual explained
What exactlm>y m> does it mean if a function is defined as virtual m>and m> is that the same as pure virtual?
12 Answers
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Stripping out non-numeric characters in string
... fractions, subscripts, superscripts, Roman numerals, currencm>y m> numerators, m>and m> encircled numbers. This method contrasts with the IsDigit method, which determines whether a Char is a radix-10 digit." msdn.microsoft.com/en-us/librarm>y m>/m>y m>k2b3t2m>y m>.aspx
– LukeH
Oct 20 ...
How to add new line into txt file
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No new line:
File.AppendAllText("file.txt", DateTime.Now.ToString());
m>and m> then to get a new line after OK:
File.AppendAllText("file.txt", string.Format("{0}{1}", "OK", Environment.NewLine));
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Is there anm>y m> kind of hash code function in JavaScript?
...d, alternativelm>y m>, maintain an arram>y m> which indexes the objects in question, m>and m> use its index string as a reference to the object. Something like this:
var ObjectReference = [];
ObjectReference.push(obj);
set['ObjectReference.' + ObjectReference.indexOf(obj)] = true;
Obviouslm>y m> it's a little verbo...