大约有 40,000 项符合查询结果（耗时：0.0523秒） [XML]
Calculating the difference between two Java date instances
...e library.
Joda Time has a concept of time Interval:
Interval interval = new Interval(oldTime, new Instant());
EDIT: By the way, Joda has two concepts: Interval for representing an interval of time between two time instants (represent time between 8am and 10am), and a Duration that represents a ...
Pass Variables by Reference in Javascript
... context = window;
// Private
rvar.refs[name] = new rvar(name, value);
// Public
Object.defineProperty(context, name, {
get: function () { return rvar.refs[name]; },
set: function (v) { rvar.refs[name].value = v; },
confi...
Formatting NSDate into particular styles for both year, month, day, and hour, minute, seconds
...
nothing new but still want to share my method:
+(NSString*) getDateStringFromSrcFormat:(NSString *) srcFormat destFormat:(NSString *)
destFormat scrString:(NSString *) srcString
{
NSString *dateString = srcString;
NSDateForm...
How do I write output in same place on the console?
I am new to python and am writing some scripts to automate downloading files from FTP servers, etc. I want to show the progress of the download, but I want it to stay in the same position, such as:
...
Pandas aggregate count distinct
...l = function(e) {
var $elem = $('.new-login-left'),
docViewTop = $window.scrollTop(),
docViewBottom = docViewTop + $window.height(),
...
Android Studio with Google Play Services
I'm trying to test Google Play Services with the new Android Studio.
I have a project with a dependency to the google_play_services.jar.
But when I try to Rebuild the project I get the following errors:
...
What to use instead of “addPreferencesFromResource” in a PreferenceActivity?
... getFragmentManager().beginTransaction().replace(android.R.id.content, new MyPreferenceFragment()).commit();
}
public static class MyPreferenceFragment extends PreferenceFragment
{
@Override
public void onCreate(final Bundle savedInstanceState)
{
...
Reading large text files with streams in C#
...de.Open, FileAccess.Read, FileShare.ReadWrite))
using (BufferedStream bs = new BufferedStream(fs))
using (StreamReader sr = new StreamReader(bs))
{
string line;
while ((line = sr.ReadLine()) != null)
{
}
}
March 2013 UPDATE
I recently wrote code for reading and processing (search...
Can one do a for each loop in java in reverse order?
...
The Collections.reverse method actually returns a new list with the elements of the original list copied into it in reverse order, so this has O(n) performance with regards to the size of the original list.
As a more efficient solution, you could write a decorator that pres...
.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
...ly, the fastest version, on Hotspot 8, is:
MyClass[] arr = myList.toArray(new MyClass[0]);
I have run a micro benchmark using jmh the results and code are below, showing that the version with an empty array consistently outperforms the version with a presized array. Note that if you can reuse an ...