All Questions

1
answer

How to connect DVR camera in Java? [closed]

I have a question, I have searched the internet but I do not think anything consistent: how to connect to a DVR camera (not IP camera) using Java? I already use OpenCV and can connect to IP camera. Is it possible to connect OpenCV with DVR?...
asked on 04.12.2014 / 14:45
2
answers

Limit size of VARCHAR2 field in Oracle

I have a column with type VARCHAR2 (4000 CHAR) and I am testing the size limit of the VARCHAR2 field in Oracle. I thought there was a limit of 4000 bytes in the field, even specifying the value 4000 in characters, because that...
asked on 08.07.2016 / 20:26
6
answers

How to change the background of rows in a table alternately? Supported by browsers

My table is created with a loop in PHP. Do I do this by PHP even adding a condition or has it any better? if ($nomSenha == 'xxxxxxxx') { echo '<table class="pesquisaClientes">'; echo '<tr>'; echo '<td class="id">Id</td...
asked on 12.12.2013 / 12:41
2
answers

Why are some "git" commands preceded by a dash and others by two dashes?

I'm learning to use git and I noticed that certain parameters are preceded by a dash while others are preceded by two. Example: git branch --merged git branch -d nome What is the reason?     
asked on 03.01.2015 / 19:10
5
answers

Move text background

Personal I need to place and animate a degrade as background of a font with a written text. I need this gradient to be applied at the font (not behind the text) and move from left to right indefinitely. How do I do this with CSS or JQuery?...
asked on 14.04.2015 / 16:35
5
answers

How to check if the string variable value is number?

I am developing a program where the user types a data, then I have to check if the value is number to proceed with the operation, but if it enters a non-numeric value it is alerted about the invalid value. > I tried to use the type() fu...
asked on 03.06.2017 / 21:07
3
answers

Is it possible to create a type element with a CSS Stamp?

What is the best way or best way to build a CSS-like letterhead element? (at the moment I did not want to have to use SVG) I'm trying to build this form with HTML / CSS and the option I have at the moment does not please me. TheoptionIf...
asked on 30.08.2018 / 19:32
3
answers

High RAM consumption

My Visual Studio 2015 when I use to debug a WEB C # MVC project has the following RAM consumption: Is this consumption normal? My computer gets very slow when I have to test some modification on a page.     
asked on 05.04.2017 / 13:55
5
answers

Carrousel in php and mysql

I have a "file upload" and needed to show it in a carousel. The path of the images is stored in the database and the images in a folder, of course. I have the following code: <div id="myCarousel" class="carousel slide" data-ride="carousel"&...
asked on 13.07.2015 / 17:49
3
answers

Is an interface a variable?

I have some doubts about interfaces in relation to the way they are used. I thought the interface was not used as a variable that represents and stores some kind of data, see MinhaInterface mInterface; instead of having the sole purpos...
asked on 01.07.2016 / 20:35