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jackson - JSON Invalid UTF-8 middle byte

This error happens when the (Jackson, this case) JSON engine tries to parse some JSON ... .impl.Utf8StreamParser._decodeUtf8_3fast(Utf8StreamParser.java:1962) Question&Answers:os...

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sql - generate_series() equivalent in MySQL

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c# - How to solve COM Exception Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))?

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ddl - add column to mysql table if it does not exist

My research and experiments haven't yielded an answer yet, so I am hoping for some help. I am modifying the install ... Does anyone have a good way to do this? Question&Answers:os...

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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...

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ruby - Regex to match Date

I want to match dates with format mm/dd/yy or mm/dd/yyyy but it should not pick 23/09/2010 where month is 23 ... invalid date like 00/12/2020 or 12/00/2011. Question&Answers:os...

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Convert a Scala list to a tuple?

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python - Non blocking subprocess.call

I'm trying to make a non blocking subprocess call to run a slave.py script from my main.py program. I need to ... how to implement this in a simple fashion...? Question&Answers:os...

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java - Printing all variables value from a class

I have a class with information about a Person that looks something like this: public class Contact { private String ... What is the correct way to solve this? Question&Answers:os...

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java - Change the System Brightness Programmatically

I want to change the system brightness programmatically. For that purpose I am using this code: WindowManager. ... thing that can change the brightness. Thanks Question&Answers:os...

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android - RecyclerView header and footer

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url - Java - class.getResource returns null

I am using the following to get the URL of this particular file, but it returns null. Does anyone ... = ExchangeInterceptor.class.getResource("GeoIP.dat"); Question&Answers:os...

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c# - Generics and casting - cannot cast inherited class to base class

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regex - Using grep in R to find strings as whole words (but not strings as part of words)

I'm searching for the right regular expression. The following t1 = c("IGF2, IGF2AS, INS, TH", "TH", " ... . I just want entries with word/phrase TH returned? Question&Answers:os...

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

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Best method to download image from url in Android

I'm using below method to download single image from url public static Bitmap getBitmap(String url) { try ... for downloading images that is also faster? Question&Answers:os...

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javascript - "You may need an appropriate loader to handle this file type" with Webpack and Babel

I am trying to use Webpack with Babel to compile ES6 assets, but I am getting the following error message: You may need ... . I am using 'babel-loader' 6.0.0. Question&Answers:os...

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How can I hide the Android keyboard using JavaScript?

I would like to hide the Android virtual keyboard in JavaScript. Someone suggested doing this: $('#input').focus( ... . Is this something that can be done? Question&Answers:os...

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jsf - java.lang.NoClassDefFoundError: javax/servlet/jsp/jstl/core/Config

I am developing an application for FB Login with website using Javascript and JSF. I have posted my code at here. ... the problem here and how can I solve it? Question&Answers:os...

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

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"Failed to load platform plugin "xcb" " while launching qt5 app on linux without qt installed

I wrote application for linux which uses Qt5. But when I am trying to launch it on the linux without Qt ... platform plugin be available but can't be loaded? Question&Answers:os...

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google chrome - How can I open my extension's pop-up with JavaScript?

I am trying to write a JavaScript function that will open my extension like when the extension icon is clicked. ... , like when the extension icon is clicked. Question&Answers:os...

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'Refresh' HTTP header

I'm automating a web application (the Mantis bug tracker) and I'm getting an interesting response header from it, ... it encounters it. What's going on here? Question&Answers:os...

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android - Changing screen brightness programmatically (as with the power widget)

I was searching how to change the brightness of the screen programmatically and I found this it is very ... .provider.Settings.System.SCREEN_BRIGHTNESS, 200); } Question&Answers:os...

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PHP mail not working for some reason

I am new to PHP and I'm using the mail function to send emails which is not working. I get a success ... RUNNING THIS SCRIPT ON THE WEBSITE NOT on the localhost Question&Answers:os...

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generics - Java map with values limited by key's type parameter

Is there a way in Java to have a map where the type parameter of a value is tied to the type parameter of ... , even if it means using some slightly ugly casts. Question&Answers:os...

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recursion - Using MySQL query to traverse rows to make a recursive tree

I have a bill of materials table that is set up like this: item - parent The end result when I display the bill ... tree. How could I do this query in mysql? Question&Answers:os...

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How does true/false work in PHP?

I wonder how PHP handles true/false comparison internally. I understand that true is defined as 1 and false is defined as ... How does PHP recognize "a" as 1 ? Question&Answers:os...

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

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android - Remove data from notification intent

I have issue in intent of my launcher activity.Scenerio is: 1. Send intents form notification service to my launcher ... How can i remove that data from intent. Question&Answers:os...

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php - How to check whether mod_rewrite is enable on server?

Currently I am using the hosting with lightspeed server. Hosting says mod_rewrite is enabled but I can't get my script ... .php/$1 [L,QSA] But same result. Question&Answers:os...

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

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