All Questions

1
answer

Token identical "==" is used only in PHP? Because?

During my studies in C language and Java, I have always come across the sign "=" of assignment and the "==" sign being equality . However, I'm studying PHP now and I came across the sign "===" of identical . My ques...
asked on 27.02.2017 / 16:12
4
answers

Is it possible to build an HTML5 app for Android with Material Design?

I wonder if it is possible to develop an html / css / js app for android using material design. If not, is there any framework that has the visual?     
asked on 16.04.2015 / 15:28
1
answer

What is an input parameter with equality (assignment operator)?

I have a function defined as follows: public classeDeRetorno nomeDaFunção(string param1, string param2, string param3 = "") What does param3 = "" mean? Does it equal the parameter to "" ?     
asked on 10.01.2017 / 12:43
2
answers

How to create a multi-platform application?

Let's go there and create a legal application, a Console Application system written in Visual Basic .NET in the .NET Framework, then you want to port this application to other platforms , but without creating a dependency on each platform, yo...
asked on 13.05.2016 / 22:35
2
answers

What is Backus-Naur Form (BNF)?

I was reading an answer here and I came across this term, what does this term mean, and what is the relationship / influence in the current languages?     
asked on 20.01.2017 / 12:53
2
answers

Separate values from each array

Good day, people, okay? I have the code that prints the different values found in 2 arrays and those values get stored in the different variable ($ different) I need to know how I can print these values stored in different but telling which arra...
asked on 05.04.2016 / 14:28
1
answer

How to display asterisk in fields with required with css?

I have a form with some mandatory fields and some not. How can I automatically insert an asterisk into the label of each field with required via css? <div class="form-group col-md-4"> <label for="cod_produto">Código do Pr...
asked on 27.07.2016 / 21:36
2
answers

What is the difference between wait () and sleep ()?

The meaning of the two words seems very similar. What is the difference between wait() and sleep() ? When to use each?     
asked on 24.12.2016 / 03:54
1
answer

How to change the version of PHP in which Composer runs on Linux?

I installed the composer on my Ubuntu through the following command: apt-get install composer Ubuntu currently supports multiple versions of PHP installed. I have PHP5.6, PHP7.0 and PHP7.1 installed on my machine. When I only had PHP5.6,...
asked on 16.03.2017 / 16:22
3
answers

Utility of #pragma

Several C / C ++ codes have the word pragma . Depending on the way it is implemented it has a different function. #pragma once #pragma pack () #pragma comment (xx, "")    For what purpose has pragma been made?       W...
asked on 28.09.2016 / 21:58