大约有 40,000 项符合查询结果（耗时：0.0686秒） [XML]
What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?
...-time. This is a pretty critical error, as the program cannot be initiated by the JVM.
On the other hand, the ClassNotFoundException is an Exception, so it is somewhat expected, and is something that is recoverable. Using reflection is can be error-prone (as there is some expectations that things m...
Why does changing 0.1f to 0 slow down performance by 10x?
... everything to do with denormalized numbers, if we flush denormals to zero by adding this to the start of the code:
_MM_SET_FLUSH_ZERO_MODE(_MM_FLUSH_ZERO_ON);
Then the version with 0 is no longer 10x slower and actually becomes faster. (This requires that the code be compiled with SSE enabled.)
...
What is the purpose of the : (colon) GNU Bash builtin?
...a modern context) you can usually use either : or true. Both are specified by POSIX, and some find true easier to read. However there is one interesting difference: : is a so-called POSIX special built-in, whereas true is a regular built-in.
Special built-ins are required to be built into the shel...
What does it mean to inflate a view from an xml file?
...
When you write an XML layout, it will be inflated by the Android OS which basically means that it will be rendered by creating view object in memory. Let's call that implicit inflation (the OS will inflate the view for you). For instance:
class Name extends Activity{
pu...
Best way to represent a fraction in Java?
...or denominator.
* Denominator will always be positive (so sign is carried by numerator,
* and a zero-denominator is impossible).
*/
public final class BigFraction extends Number implements Comparable<BigFraction>
{
private static final long serialVersionUID = 1L; //because Number is Seria...
Get fragment (value after hash '#') from a URL in php [closed]
....
If it's only about parsing a known URL from whatever source, the answer by mck89 is perfectly fine though.
share
|
improve this answer
|
follow
|
...
How do I keep two side-by-side divs the same height?
I have two divs side by side. I'd like the height of them to be the same, and stay the same if one of them resizes. I can't figure this one out though. Ideas?
...
Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
...ministrator account:
mysql> CREATE USER 'monty'@'localhost' IDENTIFIED BY 'some_pass';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'localhost'
-> WITH GRANT OPTION;
mysql> CREATE USER 'monty'@'%' IDENTIFIED BY 'some_pass';
mysql> GRANT ALL PRIVILEGES ON *.* TO 'monty'@'%'
...
Calling a function of a module by using its name (a string)
...
See also the answer provided by @sastanin if you only care for example about your local/current module's functions.
– NuSkooler
Jun 19 '15 at 22:19
...
Android notification is not showing
...e
Android 8 introduced a new requirement of setting the channelId property by using a NotificationChannel.
private NotificationManager mNotificationManager;
NotificationCompat.Builder mBuilder =
new NotificationCompat.Builder(mContext.getApplicationContext(), "notify_001");
Intent ii = new Inte...