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swing - Key bindings vs. key listeners in Java

I note that in Java / Swing there seem to be at least two different ways of handling key events: Key ... when should you prefer one rather than the other? Question&Answers:os...

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

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170 views

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Dynamic variable names Java

How will I be able to retrieve the value of a variable which has a dynamic name For Example I have list of constants ... varVal = // How do i get value of S_R Question&Answers:os...

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

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173 views

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node.js - Understanding passport serialize deserialize

How would you explain the workflow of Passport's serialize and deserialize methods to a layman. Where does user. ... is happening here? Any help is appreciated. Question&Answers:os...

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

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How to read the output from git diff?

The man page for git-diff is rather long, and explains many cases which don't seem to be necessary for a beginner. For example: git diff origin/master Question&Answers:os...

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

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javascript - Difference between JSON.stringify and JSON.parse

I have been confused over when to use these two parsing methods. After I echo my json_encoded data and retrieve it back ... is what I am unsure about? } }); Question&Answers:os...

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

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213 views

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JavaScript Document.Write Replaces All Body Content When Using AJAX

I am creating a simple ajax call that retrieves the content of a specified url and writes it to the page. The ... library as size and speed are of the essence. Question&Answers:os...

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

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syntax - When were the 'and' and 'or' alternative tokens introduced in C++?

I've just read this nice piece from Reddit. They mention and and or being "Alternative Tokens" to && and || I ... other than a syntax error. What's going on? Question&Answers:os...

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

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python - Parsing date with timezone from an email?

I am trying to retrieve date from an email. At first it's easy: message = email.parser.Parser().parse(file) date ... %Z for zone. Can someone help me on that? Question&Answers:os...

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

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collections - Java 8 Nested (Multi level) group by

I have few classes like below class Pojo { List<Item> items; } class Item { T key1; List<SubItem> subItems ... on fields in the same object as discussed here Question&Answers:os...

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

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string - using backslash in python (not to escape)

import os path= os.getcwd() final= path +'xulrunner.exe ' + path + 'application.ini' print final I want the out put: c: ... use a '' as a '' and not an escape? Question&Answers:os...

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

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602 views

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.net - Is it safe just to set CheckForIllegalCrossThreadCalls to false to avoid cross threading errors during debugging?

In WinForms applications, is it safe just to set CheckForIllegalCrossThreadCalls to FALSE to avoid ... debugging? CheckForIllegalCrossThreadCalls = false; Question&Answers:os...

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

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java - Apache FOP Displaying ### with SimSun

I am maintaining a program which uses the Apache FOP for printing PDF documents. There have been a couple ... characters in a PDF document using Apache FOP? Question&Answers:os...

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

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452 views

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python/matplotlib - multicolor line

I am trying to create a colored line with certain conditions. Basically I would like to have the line colored ... float. Works perfect with scatter(). Thanks Question&Answers:os...

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

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634 views

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java - Unable to derive module descriptor: Provider {class X} not in module

I am getting this error message when I try to compile my new modularized Java 11 application: Error occurred ... found very little documentation on this issue. Question&Answers:os...

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

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python - Change ChromeOptions in an existing webdriver

Scenario: There is a requirement of downloading files from web hierarchy to local drive under same hierarchy. ... any additional information. Thanks in advance! Question&Answers:os...

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

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474 views

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angular http - How to POST binary files with AngularJS (with upload DEMO)

unable to send file with angular post call I am trying to post .mp4 file with some data through ionic 1 with angular ... data, status, headers, config) { }); } Question&Answers:os...

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

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enums - Can I add and remove elements of enumeration at runtime in Java

It is possible to add and remove elements from an enum in Java at runtime? For example, could I read in the ... be able to alter the contents safely at runtime. Question&Answers:os...

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

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344 views

1 answer

.net - How can I set the opacity or transparency of a Panel in WinForms?

I was wondering how to change or modify the transparency of a Panel in C#, not the whole form, but the panel ... be possible with the Panel only. Thank You! Question&Answers:os...

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

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500 views

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python - Pandas cannot open an Excel (.xlsx) file

Please see my code below: import pandas df = pandas.read_excel('cat.xlsx') After running that, it gives me the following ... 2.0.1 and Pandas 1.1.5 installed. Question&Answers:os...

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

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swift - How to convert a date string with optional fractional seconds using Codable in Swift4

I am replacing my old JSON parsing code with Swift's Codable and am running into a bit of a snag. I ... to approach it using Codable however. Any suggestions? Question&Answers:os...

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

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362 views

1 answer

c# - How can I send emails through SSL SMTP with the .NET Framework?

Is there a way with the .NET Framework to send emails through an SSL SMTP server on port 465? The usual way ... entire connection is wrapped in an SSL layer)... Question&Answers:os...

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

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106 views

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How to change default validation error message in ASP.NET MVC?

Say I have this property in my model: [DisplayName("test")] [Required(ErrorMessage = "required")] public ... .DateTime, ErrorMessage = 'some other message')] Question&Answers:os...

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

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329 views

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Are single quotes allowed in HTML?

I am a big time user of using double quotes in PHP so that I can interpolate variables rather than ... would have problems recognizing single quote HTML? Question&Answers:os...

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

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346 views

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Does Python support MySQL prepared statements?

I worked on a PHP project earlier where prepared statements made the SELECT queries 20% faster. I'm wondering if ... that specifically says it does or does NOT. Question&Answers:os...

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

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362 views

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mysql two column primary key with auto-increment

I have multiple databases with the same structure in which data is sometimes copied across. In order to maintain ... the best way of achieving this in MySql. Question&Answers:os...

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

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118 views

1 answer

Nesting @media rules in CSS

Support seems to be different across browsers.. Check the link Firefox: Black with white text. Opera, Chrome, IE9: ... background-color: #000; color: #fff; } } Question&Answers:os...

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

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510 views

1 answer

shell - While-loop subshell dilemma in Bash

i want to compute all *bin files inside a given directory. Initially I was working with a for-loop: var=0 for ... $count files processed) " | tee -a entropy.txt Question&Answers:os...

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

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239 views

1 answer

Entity Framework - Why explicitly set entity state to modified?

The official documentation says to modify an entity I retrieve a DbEntityEntry object and either work with the property ... state. Am I missing something here? Question&Answers:os...

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

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