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windows - Error: ANDROID_HOME is not set and "android" command not in your PATH. You must fulfill at least one of these conditions.

I'm trying to install PhoneGap and I'm getting the following error: Error: ANDROID_HOME is not set and "android" ... is set up correctly for use with Cordova? Question&Answers:os...

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

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How to make a phone call in android and come back to my activity when the call is done?

I am launching an activity to make a phone call, but when I pressed the 'end call' button, it does not go ... = new Intent(Intent.ACTION_CALL, Uri.parse(url)); Question&Answers:os...

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

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python - How to process SIGTERM signal gracefully?

Let's assume we have such a trivial daemon written in python: def mainloop(): while True: # 1. do # 2. ... so that mainloop() had a chance to stop gracefully? 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 an int and an Integer in Java and C#?

I was reading More Joel on Software when I came across Joel Spolsky saying something about a particular type of ... Languages). So, what is the difference? Question&Answers:os...

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

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How does strtok() split the string into tokens in C?

Please explain to me the working of strtok() function. The manual says it breaks the string into tokens. I am ... string." into tokens: This a sample string Question&Answers:os...

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

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python - why should I make a copy of a data frame in pandas

When selecting a sub dataframe from a parent dataframe, I noticed that some programmers make a copy of the data frame ... will happen if I don't make a copy? Question&Answers:os...

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

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android - Difference between getDefaultSharedPreferences and getSharedPreferences

What is the difference between getDefaultSharedPreferences and getSharedPreferences in Android? Can anyone please explain? Question&Answers:os...

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

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How to get JSON from URL in JavaScript?

This URL returns JSON: { query: { count: 1, created: "2015-12-09T17:12:09Z", lang: "en-US", ... get a JavaScript object from this URL's JSON response? Question&Answers:os...

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

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python - Calculate cosine similarity given 2 sentence strings

From Python: tf-idf-cosine: to find document similarity , it is possible to calculate document similarity using ... Shouldn't give high cosine similarity value Question&Answers:os...

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

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c# - Insert 2 million rows into SQL Server quickly

I have to insert about 2 million rows from a text file. And with inserting I have to create some master tables. ... such a large set of data into SQL Server? Question&Answers:os...

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

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security - Can I protect against SQL injection by escaping single-quote and surrounding user input with single-quotes?

I realize that parameterized SQL queries is the optimal way to sanitize user input when building queries that contain user ... method I would love to see it. Question&Answers:os...

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

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.net - Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib

When starting up my web site for the first time, I'm getting this error Could not load type 'System ... .0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'. Question&Answers:os...

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

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c# - How to export DataTable to Excel

How can I export a DataTable to Excel in C#? I am using Windows Forms. The DataTable is associated with a ... I have to export records of DataTable to Excel. Question&Answers:os...

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

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c++ - Unicode encoding for string literals in C++11

Following a related question, I'd like to ask about the new character and string literal types in C++11. It ... encoding and type facilities of the new C++11. Question&Answers:os...

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

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jquery - Is $(document).ready necessary?

I saw this question in stackoverflow but do not feel that it was answered at all. Is $(document).ready ... all running after the document is ready anyways. Question&Answers:os...

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

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Excel VBA code to copy a specific string to clipboard

I'm trying to add a button to a spreadsheet that when clicked will copy a specific URL to my clipboard. I had a ... but it's been a while and I'm struggling. Question&Answers:os...

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

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firefox - Download image with selenium python

I want get captcha image from browser. I have got a url of this picture, but the this picture changes each updated ... out) cv.SaveImage('out.jpg', out) Thanks Question&Answers:os...

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

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229 views

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Merging two CSV files using Python

OK I have read several threads here on Stack Overflow. I thought this would be fairly easy for me to do but ... key in keys]) Any help is greatly appreciated. Question&Answers:os...

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

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82 views

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How to initialize an array of objects in Java

I want to initialize an array of Player objects for a BlackJack game. I've read a lot about various ways ... : 30 BlackJackCardGame.main(String[]) line: 249 Question&Answers:os...

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

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html - How do I make a PHP form that submits to self?

How do I make a self-posting/self-submitting form, i.e. a form that submits the results to itself, instead of submitting to another form? Question&Answers:os...

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

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319 views

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java - Helper in order to copy non null properties from object to another

See the following class public class Parent { private String name; private int age; private Date birthDate; // ... code as answer whether no helper in mind Question&Answers:os...

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

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72 views

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How to do/workaround a conditional join in python Pandas?

I am trying to calculate time based aggregations in Pandas based on date values stored in a separate tables. The ... group by b.COMPANY; Thanks for any help Question&Answers:os...

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

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assembly - How are the fs/gs registers used in Linux AMD64?

On the x86-64 architecture, two registers have a special purpose: FS and GS. In linux 2.6.*, the FS register seem ... this content? What is then the use of GS? Question&Answers:os...

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

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885 views

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python - PySerial non-blocking read loop

I am reading serial data like this: connected = False port = 'COM4' baud = 9600 ser = serial.Serial(port, baud ... available. Data is being sent every 1,000 ms. Question&Answers:os...

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

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325 views

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typescript - Angular2 canActivate() calling async function

I am trying to use Angular2 router guards to restrict access to some pages in my app. I am using Firebase ... out how to do it otherwise. Any thoughts? Question&Answers:os...

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

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544 views

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html - Youtube autoplay not working on mobile devices with embedded HTML5 player

To my problem, i have one link <a href="http://www.youtube.com/embed/YT-ID" class="overlay_video"></a ... works with the parameters, but not on mobile devices. Question&Answers:os...

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

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165 views

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Can't call C standard library function on 64-bit Linux from assembly (yasm) code

I have a function foo written in assembly and compiled with yasm and GCC on Linux (Ubuntu) 64-bit. It ... it possible to tell yasm to generate similar code? Question&Answers:os...

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

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207 views

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c++ - Example for boost shared_mutex (multiple reads/one write)?

I have a multithreaded app that has to read some data often, and occasionally that data is updated. Right now a ... a simple example I could use to get started? Question&Answers:os...

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

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