OStack Q&A-Knowledge Sharing Community

0 votes

206 views

1 answer

Sort by order of values in a select statement "in" clause in mysql

I'm selecting a set of account records from a large table (millions of rows) with integer id values. As ... physical one. Thanks in advance. See Question&Answers more detail:os...

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

0 votes

387 views

1 answer

Android Picasso library, How to add authentication headers?

I have tried setting a custom OkHttpClient with a custom Authenticator, however as the doc says: "Responds to authentication ... :1.0.0' Thanks! See Question&Answers more detail:os...

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

0 votes

239 views

1 answer

android - Generating Google map Release API Key

My app uses Google Maps, I signed up for a Google Maps key to debug, it worked. But now, I need a Google ... publishing. How can I get it? See Question&Answers more detail:os...

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

0 votes

134 views

1 answer

Inserting contacts in Android 2.2

I am trying to insert new RawContact contacts, but the RawContact added doesn't get displayed when I view ... insert(Data.CONTENT_URI, values); See Question&Answers more detail:os...

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

0 votes

453 views

1 answer

macos - Are classes objects in Objective-C?

okay, so I understand that an object is an instance of a class that must be allocated and initialized, but ... experience in other languages). See Question&Answers more detail:os...

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

0 votes

206 views

1 answer

javascript - Angular 2 - How to pass URL parameters?

I have created a single page mortgage calculator application in Angular 2, which acts like a learning playground ... would be much appreciated. See Question&Answers more detail:os...

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

0 votes

268 views

1 answer

r - How to parametrize function calls in dplyr 0.7?

The release of dplyr 0.7 includes a major overhaul of programming with dplyr. I read this document carefully, and I am ... dbl> #> 1 am 6.1875 See Question&Answers more detail:os...

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

0 votes

282 views

1 answer

Android: rotate image without loading it to memory

I am wondering is it possible to rotate an image stored on sdcard without loading it's to memory. The reason ... that are warmly appreciated :) See Question&Answers more detail:os...

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

0 votes

249 views

1 answer

Want an eclipse java project to run ant build files automatically

I have an Eclipse Java project, not a plugin project. And the project has some external dependencies that I handle ... its just a java project See Question&Answers more detail:os...

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

0 votes

445 views

1 answer

c - how could I intercept linux sys calls?

Besides the LD_PRELOAD trick , and Linux Kernel Modules that replace a certain syscall with one provided by you , ... reaches the actual open ? See Question&Answers more detail:os...

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

0 votes

312 views

1 answer

iphone - Get location name from Latitude & Longitude in iOS

I want to find current location name from latitude and longitude, Here is my code snippet I tried but my log shows null ... .country; } } }]; } See Question&Answers more detail:os...

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

0 votes

231 views

1 answer

php - RegExp in preg_match function returning browser error

The following function breaks with the regexp I've provided in the $pattern variable. If I change the regexp I'm fine ... WAMP 2.0 on Windows 7. See Question&Answers more detail:os...

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

0 votes

354 views

1 answer

Renaming the created_at, updated_at columns of ActiveRecord/Rails

I want to rename the timestamp columns defined in timestamp.rb . Can the methods of timestamp.rb be ... overwritten methods is used. See Question&Answers more detail:os...

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

0 votes

258 views

1 answer

java - Fetch first element of stream matching the criteria

How to get first element that matches a criteria in a stream? I've tried this but doesn't work this.stops.stream( ... () { return name; } } See Question&Answers more detail:os...

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

0 votes

1.9k views

1 answer

postgresql - Double colon (::) notation in SQL

Have picked up someone's code and this is a part of a where clause, anyone know what the double colon indicates? b ... INTERVAL '1 DAY 7:20:00' See Question&Answers more detail:os...

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

0 votes

400 views

1 answer

c# - Keep casing when serializing dictionaries

I have a Web Api project being configured like this: config.Formatters.JsonFormatter.SerializerSettings.ContractResolver = new ... ; set; } } See Question&Answers more detail:os...

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

0 votes

333 views

1 answer

java - Getting unix timestamp from Date()

I can convert a unix timestamp to a Date() object by putting the long value into the Date() constructor. ... timestamp from the Date() object? See Question&Answers more detail:os...

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

0 votes

663 views

1 answer

java - How do I compile jrxml to get jasper?

I have jrxml file, I want to compile this to get .jasper. How do I compile and get that jasper file? See Question&Answers more detail:os...

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

0 votes

1.5k views

1 answer

wpf - How to set MouseOver event/trigger for border in XAML?

I want the border to turn green when the mouse is over it and then to return to blue when the mouse is ... a trigger or events for MouseOver? See Question&Answers more detail:os...

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

0 votes

241 views

1 answer

MySQL TEXT vs BLOB vs CLOB

What are the differences, advantages and disadvantages of these different data-types both from a performance ... a usability standpoint? See Question&Answers more detail:os...

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

0 votes

612 views

1 answer

c# - Hide form instead of closing when close button clicked

When a user clicks the X button on a form, how can I hide it instead of closing it? I have tried this ... but it still closes the form. See Question&Answers more detail:os...

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

0 votes

637 views

1 answer

swift - unwrapping multiple optionals in if statement

I want to unwrap two optionals in one if statement, but the compiler complaints about an expected expression after ... smthg } Done in Swift. See Question&Answers more detail:os...

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

0 votes

543 views

1 answer

python - ImportError: cannot import name HTTPSHandler using PIP

Facing an HTTPSHandler error while installing python packages using pip, following is the stack trace, ------ ... opensuse-python-openssl-2.html See Question&Answers more detail:os...

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

0 votes

291 views

1 answer

How get permission for camera in android.(Specifically Marshmallow)

Hey I am designing an app in android studio. In which i require permission of camera. I have included <uses- ... do I ask it from user? See Question&Answers more detail:os...

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

0 votes

87 views

1 answer

How to write a custom filter in spring security?

I want to receive some information per request, so I think instead of having a function for each request and ... and it is totally new. See Question&Answers more detail:os...

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

0 votes

778 views

1 answer

c# - Connection string with relative path to the database file

I load data from sdf database in winforms App. I use full path to the database file . Example : conn = new ... string. Any advice ? Thank you. See Question&Answers more detail:os...

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

0 votes

331 views

1 answer

java - When should Throwable be used instead of new Exception?

Given: Throwable is Exception's superclass. When I read texts on writing your own 'exceptions', I see examples of ... or throw new Exception(); See Question&Answers more detail:os...

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

0 votes

305 views

1 answer

javascript - How to set HTML content into an iframe

I have a HTML string <html> <body>Hello world</body> </html> and I want to set it to an iframe with JavaScript. ... > </iframe> </body> </html> See Question&Answers more detail:os...

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

Categories

Recent questions

Just Browsing Browsing

Most popular tags