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audio - Playing MP3 using Java Sound API

Can you please suggest that how can i write a piece that plays a song.? I tried the following snippet but i ... (in); AudioPlayer.player.start(as); } } Question&Answers:os...

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

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performance - Is there a penalty when base+offset is in a different page than the base?

The execution times for these three snippets: pageboundary: dq (pageboundary + 8) ... mov rdx, [rel pageboundary] ... or after the mov makes it a cycle slower. Question&Answers:os...

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

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java - Drawing a rectangle that won't disappear in next paint

I trying to create a JPanel that draws rectangles. The Panel needs to draw alot of rectangles, but they dont move. One ... g.fillRect(x, y, size, size); } } Question&Answers:os...

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

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ios - Swift PNG Image being saved with incorrect orientation

If I use the image before it is saved it is normal. But if I save it and use it later is is 90 degrees turned. ... "Image saved") }else{ print(error!) } }) } Question&Answers:os...

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

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jquery - How to get header from cards or similar to have the same height with flex box?

No hacks please no hard coding. The idea is not solving it for one case, e.g. for the case that there ... so this (achieved by hard coding and not responsive): Question&Answers:os...

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

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jsf 2 - How to call JSF backing bean method only when onclick/oncomplete/on... event occurs and not on page load

I have two image buttons: <div class="sidebarOptions"> <input type="image" src="images/homeButton.jpg" ... method when the image button is actually clicked? Question&Answers:os...

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

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optimization - What is the purpose of the "role" attribute in HTML?

I keep seeing role attributes in some people's work. I use it too, but I'm not sure about its effect. For ... use of the role attribute? Any thoughts on this? Question&Answers:os...

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

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r - Workflow for statistical analysis and report writing

Does anyone have any wisdom on workflows for data analysis related to custom report writing? The use-case is ... --slave -f TabulateAndGraph.R > report.txt Question&Answers:os...

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

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build process - How do I get the Git commit count?

I'd like to get the number of commits of my Git repository, a bit like SVN revision numbers. The goal is to ... . Just read a file or a directory structure... Question&Answers:os...

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

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How to write a Python module/package?

I've been making Python scripts for simple tasks at work and never really bothered packaging them for others to ... by step process on writing Python modules. Question&Answers:os...

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

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Reliable way for a Bash script to get the full path to itself

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

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dependency injection - How do the major C# DI/IoC frameworks compare?

Closed. This question needs to be more focused. It is not currently accepting answers. Question&Answers:os...

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

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906 views

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indexing - How do MySQL indexes work?

I am really interested in how MySQL indexes work, more specifically, how can they return the data requested without ... detail, I would be very, very thankful. Question&Answers:os...

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

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ios - Converting Storyboard from iPhone to iPad

I have an iPhone application which has a storyboard. Now I want to provide an iPad application too. So I asked ... function or is there only the manual way ? Question&Answers:os...

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

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350 views

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javascript - window.onbeforeunload ajax request in Chrome

I have a web page that handles remote control of a machine through Ajax. When user navigate away from the page ... m doing looks completely legit to me. Thanks, Question&Answers:os...

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

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129 views

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How to stop ASP.NET from changing IDs in order to use jQuery

I have this label control in my web page <asp:Label ID="Label1" runat="server" Text="test"></asp:Label> ... jQuery operation like this $('#label1').html(xml); Question&Answers:os...

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

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621 views

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html - How to blur(css) div without blur child element

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

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156 views

1 answer

Passing Variable through JavaScript from one html page to another page

I have two pages - "page 1" and "page 2". On page 1 there's an text-box with a value of e.g. 100 and a ... I can't get it working... Why is this not working? Question&Answers:os...

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

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javascript - adding 'click' event listeners in loop

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

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840 views

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oracle - Is there a function to split a string in PL/SQL?

I need to write a procedure to normalize a record that have multiple tokens concatenated by one char. I need ... Oracle have something like a "split" function? Question&Answers:os...

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

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1.4k views

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converting a canvas into bitmap image in android

I am trying to develop an app on canvas,I am drawing a bitmap on the canvas. After drawing, I am trying ... into bitmap image. Can anyone give me a suggestion? Question&Answers:os...

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

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c# - How do I check for nulls in an '==' operator overload without infinite recursion?

The following will cause infinite recursion on the == operator overload method Foo foo1 = null; Foo foo2 = new Foo(); ... (foo2); } How do I check for nulls? Question&Answers:os...

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

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android - How to kill an application with all its activities?

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

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298 views

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c - What is the behavior of printing NULL with printf's %s specifier?

Came across an interesting interview question: test 1: printf("test %s ", NULL); printf("test %s ", NULL); prints: ... gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3 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

javascript - Anonymous class instance ---- is it a bad idea?

In ES6 we can do anonymous class: var entity = class { } But we can also instantiate it: var entity = new ... will it bring and what caveats will it also bring? Question&Answers:os...

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

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javascript - Merge multiple objects inside the same array into one object

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

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235 views

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php - Preserving session variables across different domains

I'm not sure if this is even possible. My company has their main site that accept credit cards and ... page looks for the address session variables above. Question&Answers:os...

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

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73 views

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java - Array of Generic List

I am playing with Generic and arrays, it seems the following code compiles fine, ArrayList<Key> a = new ArrayList ... does not complain about the list of list. Question&Answers:os...

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

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