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swing - Java Container remove method not working correctly

i hava added 1.TextArea 2.TextField then i start adding JButton successively on container...,now by using JRadioButton i ... ).rePaint(); } } } 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 - My floating point number has extra digits when I print it

I define a floating point number as float transparency = 0.85f; And in the next line, I pass it to a function ... I make sure it is not changed? 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 - Shiny not displaying ggplot data

I am new to working with shiny package. I am trying to use it to display a ggplot2 graph. I get no errors with ... input$y)) + geom_point() }) } See Question&Answers more detail:os...

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

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firebase stopped responding and lost all data without any error or issue

I Lost All the data from My Firebase realtime database. This is working properly last day. Suddenly This stopped ... me try again dialog only 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 - How to individually target multiple dropdowns in CSS for Dropkick Plug-in

Follow up to: How to get the output in relative units instead px by modifying this jQuery plugin of making ... ID assigned to each instance. 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++ - Does this type of memory get allocated on the heap or the stack?

In the context of C++ (not that it matters): class Foo{ private: int x[100]; public: Foo(); } What ... 't find resources online to confirm 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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c++ - Why does nvcc fails to compile a CUDA file with boost::spirit?

I'm trying to integrate CUDA to an existing aplication wich uses boost::spirit. Isolating the problem, I've found out ... and how can I fix it? See Question&Answers more detail:os...

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

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JavaFx MediaPlayer "Could not create player!" error in Ubuntu 14.04

I have installed Ubuntu 14.04 and i'm getting an error when i instantiate a MediaPlayer. package mediatest; import ... have tried with jre-1.8 See Question&Answers more detail:os...

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

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css selectors - Why doesn't this CSS :not() declaration filter down?

I want to select spans that are not the descendants of a specific class, let's call it "no". Here ... http://jsfiddle.net/stephaniehobson/JtNZm/ See Question&Answers more detail:os...

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

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qt - signals and slots in multilayered UI widgets

Let's say we have the follogin UI: +--------------------------+ |W1 +--------------+ ... have W3 itself connect to it using its own slot. 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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if statement - Compound condition in C: if (0.0 < a < 1.0)

I recently noticed that the following expression compiles in my compiler (Clang): float a; if (0.0 < a ... write conditions in this short form? See Question&Answers more detail:os...

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

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multithreading - Thread references require static lifetime?

While it makes sense intuitively that references passed to spawned threads need to have static lifetimes, I'm unclear ... what I'm missing! See Question&Answers more detail:os...

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

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python - Get the title of a window of another program using the process name

This question is probably quite basic but I'm having difficulty cracking it. I assume that I will have to use ... by that process as strings. See Question&Answers more detail:os...

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

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fortran - Unexpected data declaration statement

I'm writing a code for LU decomposition and I don't know how to fix the "unexpected data declaration statement" pointed at ... , 7x, 3(F8.4)) ! 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# - In-memory database doesn't save data

I have a simple web-app with angular on client-side and asp.net core web-api on server-side. I use ... await context.SaveChangesAsync(); } } 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# - UnassignedReferenceException even though using the null-conditional operator

I'm getting a UnassignedReferenceException: The variable _Preset of Foo has not been assigned. even though I'm using ... searches didn't help. See Question&Answers more detail:os...

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

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cbir - Matching image to images collection

I have large collecton of card images, and one photo of particular card. What tools can I use to find which ... m trying to find: Card Photo 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 - Keyboard not Appearing when Tapping Text Box in UIWebView

I have a UITabViewController set up with two tabs, the second containing a web browser. The keyboard will not ... What could possibly be wrong? See Question&Answers more detail:os...

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

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Kivy error (python 2.7) : sdl2 import error

I'm trying to use kivy on my Python 2.7 project (in a PyCharm - Windows 10 environment), but I get ... abort. Process finished with exit code 1 See Question&Answers more detail:os...

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

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jquery - How can I programmatically change a select box selection from within the control's own change event and have it work in mobile browsers

Consider the following simplified HTML and jQuery code: <select id="select1"> <option value="10">10</option> < ... it work in mobile browsers? See Question&Answers more detail:os...

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

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Does Vue.JS work with AJAX http calls?

I am trying to do the following from my HTML: var vm = new Vue({ el: '#loginContent', data: { main_message: ... t find the "vm" instance? 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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javascript - The onclick event does not work for options

Following is my code which works fine in firefox but not in chrome. Kindly let me know how to solve this issue ... True/False</option> </select> See Question&Answers more detail:os...

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

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python - How to get the correct dimensions for a pygame rectangle created from an image

I have created an image's rectangle of a sprite using the command, pygame.image.get_rect(). When locating ... that it fits the image? 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 - How to check if a tab has been reloaded in background.js?

I am writing a Chrome extension which needs to detect if the tab has been reloaded, that is to say, the ... any effect in the background.js. See Question&Answers more detail:os...

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

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android - Emulator: Warning: Quick Boot / Snapshots not supported on this machine

I am starting to learn android but havent been able to get anywhere. I downloaded android studio as per ... and get any emulator working! See Question&Answers more detail:os...

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

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php - Get all Orders IDs from a product ID in Woocommerce

How can I get an array with Order IDs by Product ID? I mean receive all orders where specific product is ... to do this by WP_Query function? See Question&Answers more detail:os...

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

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184 views

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Unexpected list behavior in Python

I wanted to reverse a list, and I managed to do so, but in the middle of the work I noticed something strange. ... print(list[len(list)-1-i]) See Question&Answers more detail:os...

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

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454 views

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java - How to add an image to a JFrame title bar?

I want to add an image (small icon) to the javax.swing.JFrame title bar. How can I do it? See Question&Answers more detail:os...

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

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