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java - What is the difference between a static method and a non-static method?

See the code snippets below: Code 1 public class A { static int add(int i, int j) { return(i + j); ... between these code snippets? Both output 15 as an answer. Question&Answers:os...

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

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152 views

1 answer

php - How to convert JSON string to array

What I want to do is the following: taking JSON as input from text area in php use this input and convert it ... ); the above code is not returning me array. Question&Answers:os...

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

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483 views

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javascript - Submit two forms with one button

I have HTML two forms, one that submits data upon entry to a database using PHP, the other directs the user ... button for two forms? (Javascript is welcome) Question&Answers:os...

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

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html - Is a URL allowed to contain a space?

Is a URI (specifically an HTTP URL) allowed to contain one or more space characters? If a URL must be encoded, ... they would feel the need to fix those URLs. Question&Answers:os...

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

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276 views

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findcontrol - Better way to find control in ASP.NET

I have a complex asp.net form,having even 50 to 60 fields in one form like there is Multiview, inside ... solution to find the nested control in ASP.NET. Question&Answers:os...

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

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459 views

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c# - Ignore folders/files when Directory.GetFiles() is denied access

I am trying to display a list of all files found in the selected directory (and optionally any ... catch (UnauthorizedAccessException) { } finally {} Question&Answers:os...

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

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75 views

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python - Is it possible to modify lines in a file in-place?

Is it possible to parse a file line by line, and edit a line in-place while going through the lines? Question&Answers:os...

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

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63 views

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java - How to use Key Bindings instead of Key Listeners

I'm using KeyListeners in my code (game or otherwise) as the way for my on-screen objects to react to user key ... Why does this happen and how do I fix this? Question&Answers:os...

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

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801 views

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windbg - How do I take a good crash dump for .NET?

I have captured a crash dump of my 32 bit .NET application running on a 64 bit Windows operating system. ... for .NET, especially with the correct bitness? Question&Answers:os...

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

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ecmascript 6 - Where can I get info on the object parameter syntax for JavaScript functions?

If I want to call a function like this: moo({ a: 4 }); Normally I'd have to phrase my function definition like this ... (a); // prints 4 } What is this feature? Question&Answers:os...

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

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302 views

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sql server - How can foreign key constraints be temporarily disabled using T-SQL?

Are disabling and enabling foreign key constraints supported in SQL Server? Or is my only option to drop and then re-create the constraints? Question&Answers:os...

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

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201 views

1 answer

python - Maximum and Minimum values for ints

I am looking for minimum and maximum values for integers in python. For eg., in Java, we have Integer. ... MAX_VALUE. Is there something like this in python? Question&Answers:os...

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

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419 views

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Why does DEBUG=False setting make my django Static Files Access fail?

Am building an app using Django as my workhorse. All has been well so far - specified db settings, ... , concerning static files and the DEBUG setting? Question&Answers:os...

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

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238 views

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css - How do I hide an element when printing a web page?

I have a link on my webpage to print the webpage. However, the link is also visible in the printout itself. ... " label should not show on the printout itself. Question&Answers:os...

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

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489 views

1 answer

html - Can I set an opacity only to the background image of a div?

Let's say I have <div class="myDiv">Hi there</div> I want to put a background-image and give it ... I get low-opacity background image with full opacity text? Question&Answers:os...

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

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237 views

1 answer

Filter array of objects based on another array in javascript

Given an array of objects : people = [ {id: "1", name: "abc", gender: "m", age:"15" }, {id: " ... return the target ids defined in id_filter and of gender=m ? Question&Answers:os...

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

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236 views

1 answer

Understanding JavaScript Truthy and Falsy

Can someone please explain JavaScript Truthy and Falsy, using the below sample data. I have read other threads but ... the rest are falsy - is this correct? Question&Answers:os...

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

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329 views

1 answer

c# - 'Static readonly' vs. 'const'

I've read around about const and static readonly fields. We have some classes which contain only constant ... readonly fields, but rather use properties maybe? Question&Answers:os...

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

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263 views

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javascript - Babel 6 regeneratorRuntime is not defined

I'm trying to use async/await from scratch on Babel 6, but I'm getting regeneratorRuntime is not defined. .babelrc ... fine. Any ideas what I'm doing wrong? Question&Answers:os...

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

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318 views

1 answer

CSS text-overflow in a table cell?

I want to use CSS text-overflow in a table cell, such that if the text is too long to fit on one line, it ... multiple lines when it hits the edge of the cell. Question&Answers:os...

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

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77 views

1 answer

Python int to binary string?

Are there any canned Python methods to convert an Integer (or Long) into a binary string in Python? There are a ... I could use a built-in function / library. Question&Answers:os...

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

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1.2k views

1 answer

pointers - Arrow operator (->) usage in C

I am reading a book called "Teach Yourself C in 21 Days" (I have already learned Java and C# so I am ... Could I please get an explanation and a code sample? Question&Answers:os...

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

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88 views

1 answer

javascript - Dynamically load JS inside JS

This question already has answers here: Question&Answers:os...

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

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342 views

1 answer

javascript - onClick to get the ID of the clicked button

How do find the id of the button which is being clicked? <button id="1" onClick="reply_click()"></button ... reply_click()"></button> function reply_click() { } Question&Answers:os...

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

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368 views

1 answer

Horizontal ListView in Android?

Is it possible to make the ListView horizontally? I have done this using a gallery view, but the selected item ... with a horizontal scroll. Share your idea? Question&Answers:os...

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

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232 views

1 answer

javascript - Get file size, image width and height before upload

How can I get the file size, image height and width before upload to my website, with jQuery or JavaScript? Question&Answers:os...

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

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365 views

1 answer

Can the Android drawable directory contain subdirectories?

In the Android SDK documentation, all of the examples used with the @drawable/my_image xml syntax directly ... the hierarchy flat in the drawable directory. Question&Answers:os...

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

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326 views

1 answer

Regex to match string containing two names in any order

I need logical AND in regex. something like jack AND james agree with following strings 'hi jack here is james' 'hi james here is jack' Question&Answers:os...

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

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