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Android Studio - TextView not showing in design view layout

I am brand new to trying out an android app. I started to follow the online tutorial (https://developer.android ... any advice you can offer. 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# - Add Shape information to a ListView when its created

Im creating shapes(rectangles, ellipse, line) in to a canvas. And then i have in another window a listview ... it is(rectangle or ellipse) 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 - rect collision with list of rects

I have the code player_rect.colliderect(tile_rects): where player_rect is a single Rect, and tile_rects is a list of ... and a list of rects? 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 - Java Server with Multiclient communication.

I'm making a game for an assignment. I have a server and multiclient set up in Java and we're using MVC. ... think they are player one. 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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python - How to hold a 'key down' in Pygame?

I use Pygame 1.9.6 and Python 3.7.4. I want to hold down the space bar and it continuously does the same ... down a button or how to make one? See Question&Answers more detail:os...

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

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java - How to unit test abstract classes: extend with stubs?

I was wondering how to unit test abstract classes, and classes that extend abstract classes. Should I test the ... has some concrete methods. 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 - Creating .pem file for APNS?

How do I create a .pem file to be stored in the hosting server for APN payload data? See Question&Answers more detail:os...

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

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Git: cannot checkout branch - error: pathspec '...' did not match any file(s) known to git

I'm not sure why I'm unable to checkout a branch that I had worked on earlier. See the commands below ... "published" t.datetime "created_at" See Question&Answers more detail:os...

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

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excel - Concatenate cell data into another data if values matches

I have two columns A and B in same excel sheet. I am trying that if in Column B two values matches then it should ... eee 2 qqq 3 www 4 oop 5 See Question&Answers more detail:os...

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

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Clicking on svg using selenium python

svg icon is clickable. <div class="some-class"> <svg aria-label="Search" class="some-icon" width="24" height="24" ... /div[1]/div[2]/svg/path"} 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 can I create an instance of an arbitrary Array type at runtime?

I'm trying to deserialize an array of an type unknown at compile time. At runtime I've discovered the type, ... t seem to have any constructor. See Question&Answers more detail:os...

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

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printing - Child processes created with python multiprocessing module won't print

I have a problem with the code below, and with any code that uses the print function in the child processes ... the solution? Thanks in advance. See Question&Answers more detail:os...

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

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oop - Are objects in PHP assigned by value or reference?

In this code: <?php class Foo { var $value; function foo($value) { $this->setValue($value); } function setValue ... at the end of the 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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c - How to printf a size_t without warning in mingw-w64 gcc 7.1?

I am using the mingw-w64 (x64) fork of minGW as prepared on nuwen.net. This is from the 7.1 ... correct format specifier in this situation. See Question&Answers more detail:os...

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

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precision - How to work with large numbers in R?

I would like to change the precision in a calculation of R. For example I would like to calculate x^6 with x = c( ... I don't know how to 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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oop - How to use objects from other namespaces and how to import namespaces in PHP

What is the main difference between these two lines?: $obj = new ArrayObject(); & $obj = new ArrayObject(); ... to have fixed the problem. See Question&Answers more detail:os...

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

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sql - How to import text files with the same name and schema but different directories into database?

I require to import multiple txt files with the same name and same schemas into the same table in SQL Server 2008 ... that I can set this up? See Question&Answers more detail:os...

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

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matplotlib - Pyplot sorting y-values automatically

I have a frequency analysis of words said in episodes of my favorite show. I'm making a plot.barh(s1e1_y, ... 8) plot.barh(s1e1_x, s1e1_y) 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++ - Receiving Chunked HTTP Data With Winsock

I'm having trouble reading in some chunked HTTP response data using winsock. I send a request fine and get the ... break; } } Any ideas? See Question&Answers more detail:os...

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

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Bash check shows file exists for non-existent files?

Run the following in bash: stuff=`rpm -ql <some package> | grep dasdasdfd` (non existent file in package, exit ... the package is present on fs See Question&Answers more detail:os...

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

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216 views

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android - can't get values out of ondatachange method

I'm currently developing an android app where I'm using firebase as database but when in got the variable in the ... 0).getLongitude()); } } See Question&Answers more detail:os...

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

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1.1k views

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deployment - Deploying ASP.NET MVC Project

I'm trying to deploy the default MVC project (from Visual Studio 2013) onto a remote server. They require the ... to run in Medium Trust mode? See Question&Answers more detail:os...

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

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320 views

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Excel VBA Delete Rows

I am trying to create a program that will delete or create rows based on what a user puts in a certain row. For ... cnt = cnt + 1 Next End If 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 - Match any non-word character (excluding diacritics)

Assuming you have the following text: Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam Lorem! nonumy ... of my situation: Demo. See Question&Answers more detail:os...

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

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lambda function don't closure the parameter in Python?

Code talks more: from pprint import pprint li = [] for i in range(5): li.append(lambda : pprint(i)) for k in li ... closure(i)) for k in li: k() See Question&Answers more detail:os...

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

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1.2k views

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file io - Escaping backslash () in string or paths in R

Windows copies path with backslash , which R does not accept. So, I wanted to write a function which would ... temporary use like using options See Question&Answers more detail:os...

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

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599 views

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python - Tkinter.PhotoImage doesn't not support png image

I am using Tkinter to write a GUI and want to display a png file in a Tkiner.Label. So I have some code ... do to make it support png files? See Question&Answers more detail:os...

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

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1.7k views

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typescript - Specify method's type without converting the method to property

Let's say, I have a method that delegates its functionality to some method from external library, and I ... its full type LibDoStuffMethodType? See Question&Answers more detail:os...

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

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