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How to save a BufferedImage as a File
...try block because, as per the API, the method throws an IOException "if an error occurs during writing"
Also explained are the method's objective, parameters, returns, and throws, in more detail:
Writes an image using an arbitrary ImageWriter that supports the given format to a File. If there is al...
Why does Python use 'magic methods'?
...ck (most recent call last):
File "python", line 1, in <module>
TypeError: unsupported operand type(s) for +: 'dict' and 'dict'
This gives an error, because the dictionary type doesn't support addition. Now, let's extend dictionary class and add "__add__" magic method:
class AddableDict(di...
How to destroy an object?
...will use print_r() to check the contents of $MyConnection, you will get an error as below:
Error:
mysqli Object
Warning: print_r(): Property access is not allowed yet in /path/to/program on line ..
( [affected_rows] => [client_info] => [client_version] =>.................)
in which case...
Behaviour of increment and decrement operators in Python
...d to be consistent and readable.
Confusing side-effects. One common newbie error in languages with ++ operators is mixing up the differences (both in precedence and in return value) between the pre- and post-increment/decrement operators, and Python likes to eliminate language "gotcha"-s. The preced...
“User interaction is not allowed” trying to sign an OSX app using codesign
...is can be caused by a default timeout of 5 minutes, that will trigger this error after a long build.
To fix:
security set-keychain-settings -t 3600 -l ~/Library/Keychains/login.keychain
share
|
i...
What are “decorators” and how are they used?
...nction($delegate) {
// This will change implementation of log.war to log.error
$delegate.warn = $delegate.error;
return $delegate;
}]);
Applications
In addition to @JBland answer.
Application wide locale settings :-
You can find an example here
Changiging default behaviour of and exist...
Differences and relationship between glActiveTexture and glBindTexture
...GL_TEXTURE_2D; attempting to bind it as GL_TEXTURE_1D will give rise to an error (while run-time).
Once the object is bound, its state can be changed. This is done via generic functions specific to that object. They too take a location that represents which object to modify.
In C/C++, this looks l...
What does 'var that = this;' mean in JavaScript?
... object available to the private
methods. This is a workaround for an
error in the ECMAScript Language
Specification which causes this to be
set incorrectly for inner functions.
JS Fiddle
function usesThis(name) {
this.myName = name;
function returnMe() {
return this; ...
Should I URL-encode POST data?
...I still like to add some codes here to explain Doug's points. (And correct errors in the code above)
Solution 1: URL-encode the POST data with a content-type header :application/x-www-form-urlencoded .
Note: you do not need to urlencode $_POST[] fields one by one, http_build_query() function can ...
ElasticSearch - Return Unique Values
... "size" : 500 }
}
}}
But if you ran into following error:
"error": {
"root_cause": [
{
"type": "illegal_argument_exception",
"reason": "Fielddata is disabled on text fields by default. Set fielddata=true on [fastest_method]...