大约有 47,000 项符合查询结果(耗时:0.0618秒) [XML]

https://stackoverflow.com/ques... 

How does the “final” keyword in Java work? (I can still modify an object.)

... I have a question. Someone I know claimed "final" also makes the variable be stored on the stack. Is this correct? I've searched everywhere and couldn't find any reference that can approve or disapprove this claim. I've searched on both Java and Android d...
https://stackoverflow.com/ques... 

Fastest way to replace NAs in a large data.table

...= function(dt) remove_na(dt) f_gdata = function(dt, un = 0) gdata::NAToUnknown(dt, un) f_dowle = function(dt) { # see EDIT later for more elegant solution na.replace = function(v,value=0) { v[is.na(v)] = value; v } for (i in names(dt)) eval(parse(text=paste("dt[,",i,":=na.replace(",i,"...
https://stackoverflow.com/ques... 

Why does LayoutInflater ignore the layout_width and layout_height layout parameters I've specified?

... true, this is root; otherwise it is the root of the inflated XML file. Now for the sample layout and code. Main layout (main.xml): <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/container" androi...
https://stackoverflow.com/ques... 

jQuery.ajax handling continue responses: “success:” vs “.done”?

I have been working with jQuery and AJAX for a few weeks now and I saw two different ways to 'continue' the script once the call has been made: success: and .done . ...
https://stackoverflow.com/ques... 

Do any JVM's JIT compilers generate code that uses vectorized floating point instructions?

... So, basically, you want your code to run faster. JNI is the answer. I know you said it didn't work for you, but let me show you that you are wrong. Here's Dot.java: import java.nio.FloatBuffer; import org.bytedeco.javacpp.*; import org.bytedeco.javacpp.annotation.*; @Platform(include = "Dot.h...
https://stackoverflow.com/ques... 

String literals and escape characters in postgresql

... I was referring to strings in SQL statements, while you are now using a psql command. Do you get the same error using the COPY command instead of \copy? – eppesuig Nov 17 '11 at 12:14 ...
https://stackoverflow.com/ques... 

How to handle WndProc messages in WPF?

... lParam, ref bool handled) { // do stuff return IntPtr.Zero; } Now, I'm not quite sure why you'd want to handle Windows Messaging messages in a WPF application (unless it's the most obvious form of interop for working with another WinForms app). The design ideology and the nature of the ...
https://stackoverflow.com/ques... 

The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value

...it.story; story.image = ArticleToEdit.image; story.modifiedDate = DateTime.Now; _db.SubmitChanges(); share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How do MySQL indexes work?

... The first thing you must know is that indexes are a way to avoid scanning the full table to obtain the result that you're looking for. There are different kinds of indexes and they're implemented in the storage layer, so there's no standard between t...
https://stackoverflow.com/ques... 

How to find if a native DLL file is compiled as x64 or x86?

...at Corflags outputs changed in latter versions (Windows SDK 8 or higher). Now instead of 32BIT it has 32BITREQUIRED and 32BITPREFERRED. See description in CorHdr.h located C:\Program Files (x86)\Windows Kits\8.0\Include\um\CorHdr.h. From what I can tell 32BITREQUIRED replaces 32BIT. Also see ans...