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How to get a list of installed android applications and pick one to run

I asked a similar question to this earlier this week but I'm still not understanding how to get a list of all ... do I use this to run a specific application? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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git - Egit in eclipse missing tree

Looks like I have a missing tree error. Just to be fair, I did totally just mess up my local files on ... .eclipse.core.internal.jobs.Worker.run(Worker.java:53) Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What's the canonical way to check for type in Python?

What is the best way to check whether a given object is of a given type? How about checking whether the object inherits ... How do I check whether it's a str? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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Lazy Method for Reading Big File in Python?

I have a very big file 4GB and when I try to read it my computer hangs. So I want to read it piece by ... these pieces ? I would love to have a lazy method. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - How do you kill a Thread in Java?

How do you kill a java.lang.Thread in Java? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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What is the Java string pool and how is "s" different from new String("s")?

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asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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html - CSS overflow-x: visible; and overflow-y: hidden; causing scrollbar issue

Suppose you have some style and the markup: ul { white-space: nowrap; overflow-x: visible; overflow-y: hidden; /* added width ... /li> <li>9</li> </ul> </div> Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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ios - How to add Exception Breakpoint in Xcode?

How to add Exception Breakpoint in Xcode? int main(int argc, char *argv[]) { NSAutoreleasePool * pool = [ ... Breakpoint and where to add? (in AppDelegate? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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sql - Is it possible to insert multiple rows at a time in an SQLite database?

In MySQL you can insert multiple rows like this: INSERT INTO 'tablename' ('column1', 'column2') VALUES ('data1', ... database? What is the syntax to do that? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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mysql - Get records with max value for each group of grouped SQL results

How do you get the rows that contain the max value for each grouped set? I've seen some overly-complicated variations on this ... Shawn | 1 | 42 Laura | 2 | 39 Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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162 views

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javascript - Updating a Nested Array with MongoDB

I am trying to update a value in the nested array but can't get it to work. My object is like this { ... hours to figure this out. Thank you in advance! Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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java - How to handle infinite loop caused by invalid input (InputMismatchException) using Scanner

So, I'm getting stuck with this piece of code: import java.util.InputMismatchException; import java.util.Scanner; ... a integer number: Invalid value! ... Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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jsf - How can I pass selected row to commandLink inside dataTable or ui:repeat?

I'm using Primefaces in a JSF 2 application. I have a <p:dataTable>, and instead of selecting rows, I ... a fixed value). Anyone has an alternative solution? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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math - Python division

I was trying to normalize a set of numbers from -100 to 0 to a range of 10-100 and was having problems only ... that's the way it is. What is the explanation? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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linux - Looping through the content of a file in Bash

How do I iterate through each line of a text file with Bash? With this script: ... GDLSTALEVAIDCYEK QYFHQLEKMNVKIPENIYR RKEKNVQ VLAKHGKLQDAIN ILGFMK LEDVALQILL Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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83 views

1 answer

Permutations in JavaScript?

I'm trying to write a function that does the following: takes an array of integers as an argument (e.g. [1, ... 've already figured out how to do this in python Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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210 views

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php - How do I get a YouTube video thumbnail from the YouTube API?

If I have a YouTube video URL, is there any way to use PHP and cURL to get the associated thumbnail from the YouTube API? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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272 views

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python - if/else in a list comprehension

How can I do the following in Python? row = [unicode(x.strip()) for x in row if x is not None else ... Nones with empty strings, and then carry out a function. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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61 views

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Immutability of Strings in Java

Consider the following example. String str = new String(); str = "Hello"; System.out.println(str); // ... points to a different object after replace() method? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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124 views

1 answer

Javascript equivalent of Python's zip function

Is there a javascript equivalent of Python's zip function? That is, given multiple arrays of equal lengths create an array of pairs. ... [2,'b',5], [3,'c',6]] Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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629 views

1 answer

html - What does <meta http-equiv="X-UA-Compatible" content="IE=edge"> do?

What's the difference if one web page starts with <!DOCTYPE html> <html> <head> <meta http-equiv="X-UA- ... rendered in most standard mode in all IE versions. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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192 views

1 answer

Android marshmallow request permission?

I am currently working on an application that requires several "dangerous" permissions. So I tried adding "ask for ... using new permission model in my app? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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226 views

1 answer

python - Passing HTML to template using Flask/Jinja2

I'm building an admin for Flask and SQLAlchemy, and I want to pass the HTML for the different inputs to ... I disable that so that the HTML renders correctly? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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282 views

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javascript - Format number to always show 2 decimal places

I would like to format my numbers to always display 2 decimal places, rounding where applicable. Examples: number display ... 1 as 1, rather than 1.00. Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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212 views

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.net - What is the purpose of "return await" in C#?

Is there any scenario where writing method like this: public async Task<SomeResult> DoSomethingAsync() { / ... additional overhead of additional await layer? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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194 views

1 answer

ios - How to develop or migrate apps for iPhone 5 screen resolution?

The new iPhone 5 display has a new aspect ratio and a new resolution (640 x 1136 pixels). What is ... the older displays and the new widescreen aspect ratio? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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83 views

1 answer

JavaScript: Create and save file

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asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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328 views

1 answer

postgresql - How does the search_path influence identifier resolution and the "current schema"

Is it possible to define in which schema new tables get created by default? (Referred by "unqualified table ... they have unqualified names. Is this possible? Question&Answers:os...

asked Oct 16, 2021 in Technique[技术] by 深蓝 (71.8m points)

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