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java - Jackson and generic type reference

I want to use jackson json library for a generic method as follows: public MyRequest<T> tester() { ... then Customer should be returned from that List? Question&Answers:os...

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

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python - What does pythonic mean?

Closed. This question is opinion-based. It is not currently accepting answers. Question&Answers:os...

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

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parsing - Get the subdomain from a URL

Getting the subdomain from a URL sounds easy at first. http://www.domain.example Scan for the first period then ... ideas besides storing a list of all TLDs? Question&Answers:os...

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

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How do I use boolean variables in Perl?

I have tried: $var = false; $var = FALSE; $var = False; None of these work. I get the error message Bareword "false" not allowed while "strict subs" is in use. Question&Answers:os...

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

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sql server - Combine multiple results in a subquery into a single comma-separated value

I've got two tables: TableA ------ ID, Name TableB ------ ID, SomeColumn, TableA_ID (FK for ... a UDF, utilizing COALESCE or something similar might work? Question&Answers:os...

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

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javascript - Remove querystring from URL

What is an easy way to remove the querystring from a Path in Javascript? I have seen a ... /List?SortDirection=dsc&Sort=price&Page=3&Page2=3&SortOrder=dsc' Question&Answers:os...

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

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How to convert the following json string to java object?

I want to convert the following JSON string to a java object: String jsonString = "{ "libraryname": "My Library", ... this if Jackson is not the best for this? Question&Answers:os...

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

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c# - Remove items from one list in another

I'm trying to figure out how to traverse a generic list of items that I want to remove from another list of ... go about that as foreach is not index based. Question&Answers:os...

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

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'Java' is not recognized as an internal or external command

When trying to check the current version of Java in which I am running, I received the error "java is ... environment variables pointed to the current Java SDK. Question&Answers:os...

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

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How to format date in angularjs

I want to format date as mm/dd/yyyy. I tried the following and none of it works for me. Can anyone help me ... > <input type="date" ng-model="valueofdate" /> Question&Answers:os...

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

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What is the difference between % and %% in a cmd file?

I recently included a line similar to this in a .cmd file: for /f %%f in ('dir /b .directory*.sql') ... in the file. Just wondering what the difference is. Question&Answers:os...

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

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upload - How to gracefully handle files that exceed PHP's `post_max_size`?

I'm working on a PHP form that attaches a file to an email, and trying to gracefully handle cases where the ... form. Is there any way to catch this error? Question&Answers:os...

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

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plot - Overlay normal curve to histogram in R

I have managed to find online how to overlay a normal curve to a histogram in R, but I would like to retain the ... I'd like to get that to be "frequency". Question&Answers:os...

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

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linq - Reading a file line by line in C#

I am trying to read some text files, where each line needs to be processed. At the moment I am just using a ... me when other values are read break; } } } Question&Answers:os...

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

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c - What is CHAR_BIT?

Quoting the code for computing the integer absolute value (abs) without branching from http://graphics.stanford.edu/~ ... ; What is CHAR_BIT and how use it? Question&Answers:os...

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

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C/C++: Force Bit Field Order and Alignment

I read that the order of bit fields within a struct is platform specific. What about if I use different ... for various compilers, will this be cross-platform? Question&Answers:os...

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

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javascript - How to differentiate single click event and double click event?

I have a single button in li with id "my_id". I attached two jQuery events with this element 1. $("#my_id"). ... ); But every times it gives me the single click Question&Answers:os...

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

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r - Manually setting group colors for ggplot2

I have a data set from which I have to make several dozen plots. The data consists of 30 Groups and several measurements ... 1"), simplePlot(DT2, tit="Plot 2")) Question&Answers:os...

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

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javascript - Show datalist labels but submit the actual value

Currently the HTML5 <datalist> element is supported in most major browsers (except Safari) and seems like an ... value attribute when the form is submitted? Question&Answers:os...

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

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Calculate number of weekdays between two dates in Java

Can anyone point me to some Java snippet wherein i can get business (except Sat and Sun) days between two dates. Question&Answers:os...

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

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performance - What happens after a L2 TLB miss?

I'm struggling to understand what happens when the first two levels of the Translation Lookaside Buffer result in ... whether they only reside in main memory. Question&Answers:os...

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

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javascript - "Uncaught TypeError: Illegal invocation" in Chrome

When I use requestAnimationFrame to do some native supported animation with below code: var support = { ... TypeError: Illegal invocation in Chrome. Why? Question&Answers:os...

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

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Inverse dictionary lookup in Python

Is there any straightforward way of finding a key by knowing the value within a dictionary? All I can think of is this: ... .items() if value == 'value'][0] Question&Answers:os...

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

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javascript - Non-Standard Attributes on HTML Tags. Good Thing? Bad Thing? Your Thoughts?

HTML (or maybe just XHTML?) is relatively strict when it comes to non-standard attributes on tags. If they aren ... the potential downsides (if there are any)? Question&Answers:os...

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

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How to add native library to "java.library.path" with Eclipse launch (instead of overriding it)

I got a native library that needs to be added to java.library.path. With JVM argument -Djava.library.path= ... and there I can use nativelib under resources) Question&Answers:os...

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

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objective c - Is there a simple way of converting an ISO8601 timestamp to a formatted NSDate?

If I use the following code: NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@ ... to return "January 1, 2010"? Question&Answers:os...

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

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java - CreateProcess error=206, The filename or extension is too long when running main() method

I have this error in eclipse helios: Exception occurred executing command line. Cannot run program "C:Program ... hint or solution would be greatly appreciated. Question&Answers:os...

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

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mongodb - Multiple join conditions using the $lookup operator

Have the two following collections: // collection1: { user1: 1, user2: 2, percent: 0.56 } // collection2: { user1: ... : 2, percent1: 0.56, percent2: 0.3 } Question&Answers:os...

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

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