大约有 16,000 项符合查询结果（耗时：0.0188秒） [XML]
Get day of week in SQL Server 2005/2008
...
thx, I had tried datename but used d, gave me an integer back. dw works as expected
– aaaa
Jul 10 '09 at 17:59
40
...
Why doesn't “System.out.println” work in Android?
I want to print something in console, so that I can debug it. But for some reason, nothing prints in my Android application.
...
Android: Go back to previous activity
...eep track of the activity stack. Whenever you start a new activity with an intent you can specify an intent flag like FLAG_ACTIVITY_REORDER_TO_FRONT or FLAG_ACTIVITY_PREVIOUS_IS_TOP. You can use this to shuffle between the activities in your application. Haven't used them much though. Have a look at...
How can I access and process nested objects, arrays or JSON?
...ike XML, YAML, CSV, and others. To work with such data, it first has to be converted to JavaScript data types, i.e. arrays and objects (and how to work with those was just explained). How to parse JSON is explained in the question Parse JSON in JavaScript? .
Further reading material
How to access ...
Type.GetType(“namespace.a.b.ClassName”) returns null
...
Perhaps you could like typeof(SomeTypeInThatAssembly).Assembly.GetTypes().Where((t) => t.FullName == youFullName); may save some hassle, eventually
– Felype
Oct 20 '16 at 14:34
...
Format Float to n decimal places
...at f = 12.345f;
DecimalFormat df = new DecimalFormat("#.00");
System.out.println(df.format(f));
The output of the print statement will be 12.35. Notice that it will round it for you.
share
|
impro...
Modulo operator with negative values [duplicate]
.... If the second operand of / or % is zero the behavior is
undefined. For integral operands the / operator yields the algebraic quotient with any fractional part discarded; if the quotient a/b is
representable in the type of the result, (a/b)*b + a%b is equal to a.
The rest is basic math:
(-7/...
@property retain, assign, copy, nonatomic in Objective-C
...retain is the same as strong.
-apple says if you write retain it will auto converted/work like strong only.
-methods like "alloc" include an implicit "retain"
Example:
@property (nonatomic, retain) NSString *name;
@synthesize name;
assign
-assign is the default and simply performs a variable...
Is there any performance reason to declare method parameters final in Java?
...ot impact the runtime performance. It's only use is to clarify the coders intent that the variable not be changed (which many consider dubious reason for its usage), and dealing with anonymous inner classes.
There is a lot of argument over whether the final modifier on the method itself has any pe...
StringLength vs MaxLength attributes ASP.NET MVC with Entity Framework EF Code First
...then did they even create MaxLength?
– Matt Johnson-Pint
Dec 1 '11 at 0:45
4
@MattJohnson - I see...