All Questions

2
answers

Where to save API connection credentials on Android

I wanted to know a suitable place to save the api connection (link, username and password), initially I was thinking of saving in an xml, but I believe that any user will have access to this file, being able to open and read. Is there a safer wa...
asked on 01.04.2017 / 07:24
2
answers

SE Function Nested?

I would like to know how to nest the function SE as follows:    Se G6 for >=20 e <=30 então 100, Se G6 >30 e <=40 então 200, Se G6 >40 e <=50 então 300, Se G6 >50 e <=60 então 400 How to mount this fu...
asked on 23.01.2017 / 15:09
2
answers

What is the purpose of flow control to continue? [duplicate]

I found this code explaining the flow control continue . string [] nomes = new string[] { "Macoratti", "Miriam", "Pedro"}; foreach (string nome in nomes) { if (nome == "Miriam") continue; Consol...
asked on 24.05.2017 / 18:50
1
answer

Is there a binary tree in .NET?

I do not know if it's hidden somewhere and I did not see a binary tree structure in .NET. I searched the documentation for all Collection , including sub-levels and nothing. Are not you? Why not have something so important?     
asked on 03.04.2017 / 14:19
1
answer

What are the differences between ADOdb and PDO?

What are the differences between ADOdb and PDO? Which one performs best?     
asked on 29.05.2017 / 18:43
2
answers

Scatter plots fixing a response variable

Suppose I have an interest in the iris dataset, already present in R memory: head(iris) Sepal.Length Sepal.Width Petal.Length Petal.Width Species 1 5.1 3.5 1.4 0.2 setosa 2 4.9...
asked on 01.06.2017 / 14:21
3
answers

How to insert index and element into an array

I am developing a loop to compare two tables in a database. The intention is to know how many people were indicated by a same employee of the company. For this, I need to start an array as follows: foreach($linhas as $linha){ $varivael = a...
asked on 04.05.2017 / 17:16
2
answers

How to open the MainPage.axml from a Xamarin Project in Designer mode?

So recently I downloaded Visual Studio 2017 and came across the Multiplatform Application (Xamarim.Forms or Native), when I create it it is generated 4 projects. The App1; App1.Droid; App1.IOS; App1.UWP (Universal Windows Plataform) . I...
asked on 23.05.2017 / 05:39
2
answers

Error declaration null - Unknown type name 'bool'

The error you are giving is in this function. bool tem_numero_na_lista(tipo_lista * aux, int valor) { while (aux - > prox != NULL) { if (aux - > info == valor) { return true; } aux = aux - > prox; else {...
asked on 18.04.2017 / 16:31
2
answers

What is syncblock?

I received a response that spoke about a syncblock . Why is it necessary? From what I understand, what I researched is competition control. But why does every object need it if not everyone will have competition?     
asked on 28.04.2017 / 16:34