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How can I count the number of matches for a regex?
...for Java 9+
long matches = matcher.results().count();
Solution for Java 8 and older
You'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 completely different.
Complete exam...
Python extending with - using super() Python 3 vs Python 2
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edited Jan 25 '18 at 7:50
Eric O Lebigot
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How to create default value for function argument in Clojure
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answered Jul 8 '10 at 22:10
Brian CarperBrian Carper
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How can I change Mac OS's default Java VM returned from /usr/libexec/java_home
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89
I think JAVA_HOME is the best you can do. The command-line tools like java and javac will resp...
POST data in JSON format
...ue);
xhr.setRequestHeader('Content-Type', 'application/json; charset=UTF-8');
// send the collected data as JSON
xhr.send(JSON.stringify(data));
xhr.onloadend = function () {
// done
};
};
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Stop setInterval
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answered May 8 '13 at 9:33
Rory McCrossanRory McCrossan
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Get the creation date of a stash
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IgorIgor
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What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
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edited Mar 29 '18 at 14:02
cori
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answer...
Rails 3 datatypes?
... Nicolas RaoulNicolas Raoul
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Predicate in Java
... like this:
List<Integer> numbers = Arrays.asList(1,2,3,4,5,6,7,8,9,10);
for (int number : numbers) {
if (isEven(number)) {
process(number);
}
}
With Predicate, the if test is abstracted out as a type. This allows it to interoperate with the rest of t...