All Questions

3
answers

How do I get the directional keys in C / C ++?

Is it possible to pick up the directional keys (famous little keys) from the keyboard? if so how?     
asked on 19.03.2014 / 13:07
3
answers

How useful is FuncT, TResult

I was researching a few things and came across Func<T, TResult> , and I did not quite understand the utility of it. For example: //Método public string Nome(string nome) { return "Meu nome é " + nome } //Ao utiliza-lo eu ch...
asked on 11.06.2015 / 21:15
3
answers

Write to a Notepad C #

Can someone help me with the following. I want to put a button in my program, which when clicking, write the contents of a Textbox in a Notepad Document in the folder that we want.     
asked on 10.04.2015 / 13:38
4
answers

Include UTF-8 charset in mysqli connection

Hello, after repairing my code is full of strange characters like ???, I tried to fix it but I discovered that I need to change the charset through the mysqli connection, but the problem is that I do not know how to do this! Can anyone help m...
asked on 30.07.2015 / 20:37
2
answers

Is Apache server required in hosting services?

The Apache web server or XAMPP is the same as UOL Host or any other hosting provider, ie the purpose of both is to store websites and return requests made by the browser? For example, if I hire UOL Host or Terra to host my site, will not thes...
asked on 16.09.2015 / 19:10
2
answers

Calculation of Difference between Dates

I have the following DF: MATRICULA <- c('111','222','333','444','555') DATA_INICIO <- c('10/12/2017','31/12/2014', '30/06/2015','20/11/2016','01/04/2014') DATA_FIM <- c('10/12/2017', '01/01/2015', '02/07/2016', '03/12/2016', '13/04/...
asked on 26.12.2018 / 15:45
3
answers

Create html table and zebra the same

I would like to know, how do I zebrate an HTML table? It has only two columns and the information is populated dynamically from the controller and DB.     
asked on 07.05.2014 / 19:30
3
answers

How to create an image effect raise by hovering the mouse over

I'm new here and I'm basic at CSS . I would like to know how to create an effect that, when hovering over the image, it raises a little.     
asked on 21.04.2014 / 02:30
1
answer

How useful the operator! in Java?

In if(!aplicaDescontoDe(valor)); in which the aplicaDescontDe method is a boolean, how does it work I did not understand? In this Example: public boolean aplicaDescontoDe(double porcentagem) { if(porcentagem >0.3) {...
asked on 01.08.2015 / 00:39
3
answers

How to connect to MySQL only once, without ever having to instantiate?

How do I connect to MySQL only once, without having to re-write it in every function? Currently I do this: class Site { var $driver; var $host; var $dbname; var $user; var $pass; public function __construct($driver,...
asked on 08.12.2014 / 14:51