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Why does this Java program terminate despite that apparently it shouldn't (and didn't)?
...erformance.
See chapter 17 of the Java Language Spec for the gory details:http://docs.oracle.com/javase/specs/jls/se7/html/jls-17.html
(Initial answer assumed a weaker memory model, as I was not sure the JLS guaranteed volatile was sufficient. Answer edited to reflect comment from assylias, point...
How to check type of variable in Java?
... this is known as Reflection. Here's some more information on the subject: http://docs.oracle.com/javase/tutorial/reflect/
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How to check if a value exists in a dictionary (python)
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Convert string to nullable type (int, double, etc…)
I am attempting to do some data conversion. Unfortunately, much of the data is in strings, where it should be int's or double, etc...
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Does Java 8 provide a good way to repeat a value or function?
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MySQL remove all whitespaces from the entire column
...racters :
UPDATE `table` SET `col_name` = REPLACE(`col_name`, '\n', '')
http://dev.mysql.com/doc/refman/5.0/en/string-functions.html#function_replace
To remove first and last space(s) of column :
UPDATE `table` SET `col_name` = TRIM(`col_name`)
http://dev.mysql.com/doc/refman/5.0/en/string-fu...
How to use Class in Java?
There's a good discussion of Generics and what they really do behind the scenes over at this question , so we all know that Vector<int[]> is a vector of integer arrays, and HashTable<String, Person> is a table of whose keys are strings and values Person s.
However, what stumps me ...
Understanding Apache's access log
...td (not usually used since not reliable)
%u is the user name determined by HTTP authentication
%t is the time the request was received.
%r is the request line from the client. ("GET / HTTP/1.0")
%>s is the status code sent from the server to the client (200, 404 etc.)
%b is the size of the respon...
Set cookie and get cookie with JavaScript [duplicate]
...x = getCookie('ppkcookie');
if (x) {
[do something with x]
}
Source - http://www.quirksmode.org/js/cookies.html
They updated the page today so everything in the page should be latest as of now.
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Converting a string to a date in JavaScript
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moment.js (http://momentjs.com/) is a complete and good package for use dates and supports ISO 8601 strings.
You could add a string date and format.
moment("12-25-1995", "MM-DD-YYYY");
And you could check if a date is valid.
moment...