大约有 43,000 项符合查询结果(耗时:0.0531秒) [XML]

https://stackoverflow.com/ques... 

Android : Check whether the phone is dual SIM

... Update 23 March'15 : Official multiple SIM API is available now from Android 5.1 onwards Other possible option : You can use Java reflection to get both IMEI numbers. Using these IMEI numbers you can check whether the phone is a DUAL SIM or not. Try following activity : import andro...
https://stackoverflow.com/ques... 

using extern template (C++11)

...it will be instantiated somewhere else. It is used to reduce compile time and object file size. For example: // header.h template<typename T> void ReallyBigFunction() { // Body } // source1.cpp #include "header.h" void something1() { ReallyBigFunction<int>(); } // source2....
https://stackoverflow.com/ques... 

Android: Vertical ViewPager [closed]

...horizontal drag you will have to override ViewPager's default touch events and swap the coordinates of MotionEvents prior to handling them, e.g.: /** * Uses a combination of a PageTransformer and swapping X & Y coordinates * of touch events to create the illusion of a vertically scrolling Vie...
https://stackoverflow.com/ques... 

Adding a new SQL column with a default value

...r down the page: column_definition clauses use the same syntax for ADD and CHANGE as for CREATE TABLE. See Section 12.1.17, “CREATE TABLE Syntax”. And from the linked page: column_definition: data_type [NOT NULL | NULL] [DEFAULT default_value] [AUTO_INCREMENT] [UNIQUE [KEY] | [PRI...
https://stackoverflow.com/ques... 

Expert R users, what's in your .Rprofile? [closed]

... Here are two functions I find handy for working with windows. The first converts the \s to /. .repath <- function() { cat('Paste windows file path and hit RETURN twice') x <- scan(what = "") xa <- gsub('\\\\', '/', x) writeClipboard(paste(xa, collapse=" ")) cat('Here\'s y...
https://www.tsingfun.com/it/cp... 

编译器内部的秘密--微软的编译器是如何解析Try/Catch/Throw的 - C/C++ - 清...

...是一篇介绍如何在x86架构上详细地实现异常处理(exception handling)的手册,只是一篇入门的讨论性文章。本文只是讨论一些处理步骤在理论上应该如何实现,其具体的实现步骤可能跟文章所讨论的并不一致。原文译自:http://www.codep...
https://stackoverflow.com/ques... 

Why does i = i + i give me 0?

... Could you expand on your answer a bit? – DeaIss Jun 11 '14 at 22:16 17 ...
https://stackoverflow.com/ques... 

Assign variable value inside if-statement [duplicate]

... an assignment returns the left-hand side of the assignment. so: yes. it is possible. however, you need to declare the variable outside: int v = 1; if((v = someMethod()) != 0) { System.err.println(v); } ...
https://stackoverflow.com/ques... 

How does the Comma Operator work

...itializers for symbol tables. Thus, it makes the following syntax possible and meaningful: keywords = "and", "or", "not", "xor"; Notice that due to operator precedence, the code is (intentionally!) identical to (((keywords = "and"), "or"), "not"), "xor"; That is, the first operator called is k...
https://stackoverflow.com/ques... 

Is it possible to read from a InputStream with a timeout?

...tream always returns 0. This method should be overridden by subclasses. And indeed, the concrete input stream classes do override available(), providing meaningful values, not constant 0s. Second Caveat: Ensure you use carriage-return when typing input in Windows. If using System.in, your progr...