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Android basics: running code in the UI thread
...
None of those are precisely the same, though they will all have the same net effect.
The difference between the first and the second is that if you happen to be on the main application thread when executing the code, the firs...
Volatile boolean vs AtomicBoolean
...ards, with a volatile boolean, you can't.
So whenever you have more than one thread modifying a field, you need to make it atomic or use explicit synchronization.
The purpose of volatile is a different one. Consider this example
volatile boolean stop = false;
void loop() {
while (!stop) { .....
How do I echo and send console output to a file in a bat script?
...e tee.bat) you can.
I try to explain the redirection a bit.
You redirect one of the ten streams with > file or < file
It is unimportant, if the redirection is before or after the command,
so these two lines are nearly the same.
dir > file.txt
> file.txt dir
The redirection in this e...
What is the naming convention in Python for variable and function names?
...ou using, that doesn't know that underscore continues a word? Lots of free ones that do. I use Notepad++, if an IDE isn't available. For that, can download a template for python editing. (Others can recommend even more useful free downloads.)
– ToolmakerSteve
D...
How to delete last character in a string in C#?
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I can't believe this was the chosen answer... the one just below this by @BrianRasmussen is so much simpler.
– FastTrack
Mar 19 '14 at 16:09
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How can I delete one element from an array by value
... What if there are multiple entries of 3 and we wanted to delete only one of them? (this is related so asking this here might be best)
– Navneet
Oct 18 '12 at 18:24
114
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How to change time and timezone in iPhone simulator?
How do I change time and time zone in the iPhone simulator?
11 Answers
11
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Why are private fields private to the type, not the instance?
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I think one reason it works this way is because access modifiers work at compile time. As such, determining whether or not a given object is also the current object isn't easy to do. For example, consider this code:
public class Foo...
Split value from one field to two
...tion. However you can create a user defined function for this, such as the one described in the following article:
MySQL Split String Function by Federico Cargnelutti
With that function:
DELIMITER $$
CREATE FUNCTION SPLIT_STR(
x VARCHAR(255),
delim VARCHAR(12),
pos INT
)
RETURNS VARCHAR...
setTimeout or setInterval?
...s (or a lot more if your function takes a long time to execute).
Although one might think that setInterval will execute exactly every 1000ms, it is important to note that setInterval will also delay, since JavaScript isn't a multi-threaded language, which means that - if there are other parts of th...