大约有 40,000 项符合查询结果（耗时：0.0598秒） [XML]
Further understanding setRetainInstance(true)
...State);
Log.d(TAG, this + ": onCreate()");
TextView tv = new TextView(this);
tv.setText("Hello world");
setContentView(tv);
if (getFragmentManager().findFragmentByTag("test_fragment") == null)
{
Log.d(TAG, this + ": Existing fragment not...
Is there a way to override class variables in Java?
...
Yes. But as the variable is concerned it is overwrite (Giving new value to variable. Giving new definition to the function is Override).Just don't declare the variable but initialize (change) in the constructor or static block.
The value will get reflected when using in the blocks of p...
How to get unique values in an array
...I may as well provide an example that uses no libraries. This requires two new prototype functions, contains and unique
Array.prototype.contains = function(v) {
for (var i = 0; i < this.length; i++) {
if (this[i] === v) return true;
}
return false;
};
Array.prototype.unique...
How to convert std::string to lower case?
...have to supply them together with your application, and that opens a whole new can of worms...)
So personally I would recommend getting full Unicode support straight from the horse's mouth and using the ICU library directly:
#include <unicode/unistr.h>
#include <unicode/ustream.h>
#inclu...
Java: how can I split an ArrayList in multiple small ArrayLists?
...erations supported by this list.
Example:
List<Integer> numbers = new ArrayList<Integer>(
Arrays.asList(5,3,1,2,9,5,0,7)
);
List<Integer> head = numbers.subList(0, 4);
List<Integer> tail = numbers.subList(4, 8);
System.out.println(head); // prints "[5, 3, 1, 2]"
Syste...
Java abstract interface
...nd even there it says "This modifier is obsolete and should not be used in new Java programs".
Okay, digging even further... After hitting numerous broken links, I managed to find a copy of the original Oak 0.2 Specification (or "manual"). Quite interesting read I must say, and only 38 pages in tot...
How do I force a favicon refresh?
...ing locally using its own tomcat and I have just changed the favicon for a new one. Problem is that I can not see it in any browser. The old favicon shows up or I get no favicon at all, but not my new one. I do not think this is a Grails issue per se, more an issue with favicons.
...
Hidden Features of C++? [closed]
No C++ love when it comes to the "hidden features of" line of questions? Figured I would throw it out there. What are some of the hidden features of C++?
...
DateTime2 vs DateTime in SQL Server
...ion:
Use the time, date, datetime2 and
datetimeoffset data types for new
work. These types align with the SQL
Standard. They are more portable.
time, datetime2 and datetimeoffset
provide more seconds precision.
datetimeoffset provides time zone
support for globally deployed
appli...
Combining two Series into a DataFrame in pandas
...ng the concat once pd.concat([list_of_dataframes]) vs concating many times new_df = pd.DataFrame(); for df in list_of_dsf: new_df = pd.concat([new_df, df]) or similar.
– Andy Hayden
Oct 14 '15 at 22:07
...