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Setting the default Java character encoding
...p; by the time your main method is entered, the character encoding used by String.getBytes() and the default constructors of InputStreamReader and OutputStreamWriter has been permanently cached.
As Edward Grech points out, in a special case like this, the environment variable JAVA_TOOL_OPTIONS can ...
What is a serialVersionUID and why should I use it?
...VersionUID, which is used during deserialization to verify that the sender and receiver of a serialized object have loaded classes for that object that are compatible with respect to serialization. If the receiver has loaded a class for the object that has a different serialVersionUID than that of t...
Regular expression to match balanced parentheses
... are many nested parenthesis (...(..)..(..)..(..)..(..)..)) in the subject string), you can use a simple non-capturing group and enclose all in an atomic group: (?>(?:[^)(]+|\g<1>)*) (this behaves exactly like a possessive quantifier). In Ruby 2.x, the possessive quantifier is available.
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How to change the text of a button in jQuery?
...e of a button in jQuery? Currently, my button has 'Add' as its text value, and upon being clicked I want it to change to 'Save'. I have tried this method below, but so far without success:
...
vs
...> <wchar.h>
<fenv.h> <locale.h> <stdbool.h> <string.h> <wctype.h>
And further,
2 Every C header, each of which has a name of the form name.h, behaves as if each name placed in the standard library namespace by the corresponding cname header is placed within...
What does enctype='multipart/form-data' mean?
...ke.
application/x-www-form-urlencoded is more or less the same as a query string on the end of the URL.
multipart/form-data is significantly more complicated but it allows entire files to be included in the data. An example of the result can be found in the HTML 4 specification.
text/plain is i...
When to use in vs ref vs out
... difference, an out parameter needs not be initialized.
Example for out:
string a, b;
person.GetBothNames(out a, out b);
where GetBothNames is a method to retrieve two values atomically, the method won't change behavior whatever a and b are. If the call goes to a server in Hawaii, copying the in...
Multiple left-hand assignment with JavaScript
...
a = (b = 'string is truthy'); // b gets string; a gets b, which is a primitive (copy)
a = (b = { c: 'yes' }); // they point to the same object; a === b (not a copy)
(a && b) is logically (a ? b : a) and behaves like multipl...
sql primary key and index
...x does no good, but the only harm (very small) is the additional file size and row-creation overhead.
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Canvas width and height in HTML5
Is it possible to fix the width and height of an HTML5 canvas element?
4 Answers
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