大约有 43,000 项符合查询结果（耗时：0.0496秒） [XML]
Download a file with Android, and showing the progress in a ProgressDialog
...red inside the activity class.
// that way, you can easily modify the UI thread from here
private class DownloadTask extends AsyncTask<String, Integer, String> {
private Context context;
private PowerManager.WakeLock mWakeLock;
public DownloadTask(Context context) {
this....
What does Maven do, in theory and in practice? When is it worth to use it? [closed]
I am about to start a Java project just for practice. I've read about Maven, but I don't actually understand when it is meant to be used.
...
Why does Iterable not provide stream() and parallelStream() methods?
...2013.
The definitive discussion of the Expert Group is rooted at this thread.
While it seemed "obvious" (even to the Expert Group, initially) that stream() seemed to make sense on Iterable, the fact that Iterable was so general became a problem, because the obvious signature:
Stream<T> st...
When to use CouchDB over MongoDB and vice versa
...
I laughed when I read "replicate to mobile device" lol how little is your data?
– Daniel W.
Apr 14 '16 at 15:27
3
...
Change R default library path using .libPaths in Rprofile.site fails to work
... if you want to add a library why not append the new library (which must already exist in your filesystem) to the existing library path?
.libPaths( c( .libPaths(), "~/userLibrary") )
Or (and this will make the userLibrary the first place to put new packages):
.libPaths( c( "~/userLibrary" , .li...
Determining memory usage of objects? [duplicate]
...f some_list is reported as the same size as some_other_list, but if I only read from some_list then the memory is being shared. Can someone confirm if this is correct?
– savagent
Sep 25 '14 at 1:42
...
What is the purpose of Order By 1 in SQL select statement?
I'm reading through some old code at work, and have noticed that there are several views with an order by 1 clause. What does this accomplish?
...
JavaScript single line 'if' statement - best syntax, this alternative? [closed]
...ckets on a single line if statement is not ideal for maintainability and readability.
13 Answers
...
What are the effects of exceptions on performance in Java?
...jmp. That means all registers of the CPU are written to the stack (which already takes some time) and possibly some other data needs to be created... all this already happens in the try statement. The throw statement needs to unwind the stack and restore the values of all registers (and possible oth...
Converting an array to a function arguments list [duplicate]
...er will need to use the .apply() method:
app[func].apply( this, args );
Read up on these methods at MDN:
.apply()
spread "..." operator (not to be confused with the related rest "..." parameters operator: it's good to read up on both!)
...