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Java error "Value of local variable is not used"

I am really new to java (started learning 2 days ago). Sorry if this is a stupid question. I am trying to ... . Would be nice if someone helped. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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javascript - Parse request.object.get("KEY") always returns undefined

I have a strange problem over here. I have a project built with Parse.com as a backend (using cloudcode to ... , it looses all its fields. See Question&Answers more detail:os...

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integer - Inconsistent behavior on java's ==

Consider this code: class test { public static void main(String[] args) { test inst_test = new test ... practical reason for this inconsistency? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c++ - CPack: Exclude INSTALL commands from subdirectory (googletest directory)

I'm using CMake for a project and googletest for my test cases. Looking around the internet, it seems to ... disable these installs in CPack? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c# 4.0 - C# - Issues with boxing / unboxing / typecasting ints. I don't understand

I'm having a hard time understanding this. Consider the following example: protected void Page_Load(object sender, ... is going on here? See Question&Answers more detail:os...

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How to write Case Sensitive Query for MS Access?

I want to know the Select Query for MS Access with case sensitive. I have two values for VitualMonitorName as below ... replies VCode = 1 Only. See Question&Answers more detail:os...

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submit form does not stop in jquery ajax call

I got following code : $.ajax({ type: "POST", async: false, url: "CheckIdExist", data: param, success ... stopping submit form. any help please. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Does the term "vectorization" mean different things in different contexts?

Based on what I've read before, vectorization is a form of parallelization known as SIMD. It allows processors to ... why is that a plus? See Question&Answers more detail:os...

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swift - Projecting the ARKit face tracking 3D mesh to 2D image coordinates

I am collecting face mesh 3D vertices using ARKit. I have read: Mapping image onto 3D face mesh and ... suggestions? Thanks in advance! See Question&Answers more detail:os...

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c# - Display Image using ashx Handler

I have the following image in my aspx page <td> <asp:Image ID="LargeImage" runat="server" Height="100" Width ... like the handler isn't firing. See Question&Answers more detail:os...

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rust - Extend lifetime of variable

I'm trying to return a slice from a vector which is built inside my function. Obviously this doesn't work because ... collect(); v.as_slice() } See Question&Answers more detail:os...

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c++ - How to parse csv using boost::spirit

I have this csv line std::string s = R"(1997,Ford,E350,"ac, abs, moon","some "rusty" parts",3000.00)"; ... abs, moon some "rusty" parts 3000.00 See Question&Answers more detail:os...

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Getting the object variable name in JavaScript

I am creating a JavaScript code and I had a situation where I want to read the object name (string) in the ... you guys how to achieve this. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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asp.net - Project template for Visual Studio 2015

I am trying to create a project template for Visual Studio 2015. I created a ASP.NET 5 class library (under ... . Am I missing something.? See Question&Answers more detail:os...

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syntax - Add a prefix to all rows in R

I am trying to add a prefix end to all rows in a col ensnp in a dataframe chrs: Name endsnp Bov001 Bov001 ... ideas about my error? Thank you! See Question&Answers more detail:os...

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javascript - how to convert xml to json using jquery

The following code runs very well for this test XML page: $.get('data/animals.xml', function(xml){ ... #tab-Usage getting data using javascript See Question&Answers more detail:os...

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math - Arbitrary precision decimals in C#?

Is there an arbitrary-precision decimal class available for C#? I've seen a couple of arbitrary precision integer ... not quite the same thing. See Question&Answers more detail:os...

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java - Groovy collections performance considerations regarding space/time

What is the performance of Groovys collection methods (regarding space(!) and time) in comparison to plain Java for- ... n } } bm.prettyPrint() See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Inno Setup Exec() function Wait for a limited time

In my Inno Setup script I am executing 3rd party executable. I am using the Exec() function as below: Exec( ... Is there any solution for that? See Question&Answers more detail:os...

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r - Shiny renderUI selectInput returned NULL

I am trying to use a reactivity model with one input affecting several outputs as describe in the shiny cheat sheet. I need ... ) str(A) }) })) See Question&Answers more detail:os...

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php - Getting FULL URL with #tag

Tried to print the $_SERVER array in PHP, yet I can't find what I want: http://www.domain.com/ ... the "sometaginpage". Help. Thanks! See Question&Answers more detail:os...

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sql server 2008 - How can I get a trigger to fire on each inserted row during an INSERT INTO Table (etc) SELECT * FROM Table2?

I've been trying to avoid using a cursor in this particular case just because I dislike the tradeoffs, and it ... @Subject, @body='//etc' END See Question&Answers more detail:os...

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asp.net mvc - How to reuse Areas, Controllers, Views, Models, Routes in multiple apps or websites

I have a test solution which only has one area called Admin. I would like to reuse Admin across a number ... for this situation to work. See Question&Answers more detail:os...

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android - Sending a POST request with JSONArray using Volley

I want to send a simple POST request in Android with a body equaling this : [ { "value": 1 } ] I tried to ... know how can I fix that Thank you See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Propagate an optional through a function (or Init) in Swift

does anyone have a (better) way to do this? Lets say I have a optional Float let f: Float? = 2 Now ... ideas will be much appreciated. Thanks! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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iphone - How to find size of a file before downloading it in iOS 7?

Wanted to find size of a file on some server before downloading it in iOS 7... I have ... didReceiveResponse:(NSURLResponse *)response See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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pointers - Meaning of '&variable' in arguments/patterns

What does &variable mean when it is used in patterns or closure arguments? for &code in self.exit_code.iter() { ... ... ), but I'm not sure. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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c - How to restart stdin after Ctrl+D?

Running a program expecting input from terminal I can ”close” stdin by Ctrl+D. Is there any way to reopen stdin after that? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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