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When should I make explicit use of the `this` pointer?
...ant to pass a reference to your object to some function.
When there is a locally declared object with the same name as the member object.
When you're trying to access members of dependent base classes.
Some people prefer the notation to visually disambiguate member accesses in their code.
...
How to check if UILabel is truncated?
... from the doc : textRectForBounds:limitedToNumberOfLines: "You should not call this method directly"...
– Martin
Nov 7 '12 at 15:25
...
What does “Could not find or load main class” mean?
...ring[]). (Note, the method argument's name is NOT part of the signature.)
Call that method passing it the command line arguments ("fred", "joe", "bert") as a String[].
Reasons why Java cannot find the class
When you get the message "Could not find or load main class ...", that means that the fir...
Difference between getContext() , getApplicationContext() , getBaseContext() and “this”
...out changing the original Context”. For example, if you have an activity called myActivity then can create a View with a different theme than myActivity:
ContextWrapper customTheme = new ContextWrapper(myActivity) {
@Override
public Resources.Theme getTheme() {
return someTheme;
}
}
Vi...
Difference between del, remove and pop on lists
...>>> a = [4, 5, 6]
>>> a.remove(7)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: list.remove(x): x not in list
>>> del a[7]
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
IndexError: li...
When to use extern in C++
...clarify, using extern int x; tells the compiler that an object of type int called x exists somewhere. It's not the compilers job to know where it exists, it just needs to know the type and name so it knows how to use it. Once all of the source files have been compiled, the linker will resolve all of...
Deprecated: mysql_connect()
...'s deprecated, yes, thank you, next please. In the future, mysql function calls will obviously be replaced. Until then, hiding the warning is a practical advice to allow the site to operate while we're silently replacing mysql_xxx calls with something else in the background. Don't be superstitiou...
MediaNotification 媒体通知扩展：管理媒体播放器通知，支持播放控制 · Ap...
...检查名称并只处理适当的消息。Kodular现在也提供许多Androidx功能。只需要集成 “androidx.media.jar”。前台服务现在通过源代码中的 UsesServices 注解和生成的.aix文件中的 broadcastReceivers 部分手动声明。有了这些更改，不再需要为App In...
How do I output an ISO 8601 formatted string in JavaScript?
...
There is already a function called toISOString():
var date = new Date();
date.toISOString(); //"2011-12-19T15:28:46.493Z"
If, somehow, you're on a browser that doesn't support it, I've got you covered:
if ( !Date.prototype.toISOString ) {
( funct...
SVN: Is there a way to mark a file as “do not commit”?
...ortoiseSVN has a built in changelist, "ignore-on-commit", which is automatically excluded from commits. The command-line client does not have this, so you need to use multiple changelists to accomplish this same behavior (with caveats):
one for work you want to commit [work]
one for things you wan...