All Questions

3
answers

Performance with multipart / form-data

Regardless of the language used on the server side (php, asp, jsf, etc.), is there any problem in adding the enctype="multipart/form-data" attribute even on page forms that do not upload file? / p> Because I use a template in an appli...
asked on 25.11.2015 / 17:45
1
answer

How to find the category with the minimum of observations in a table?

Suppose you have the following data: a<-c(rep("agosto",3),rep("janeiro",4),rep("maio",6)) table(a) I want to know which month with the least amount of comments? With the function min(table(a)) the response is the minimum value...
asked on 16.03.2014 / 21:49
1
answer

What is the algorithm for distributing the paragraphs?

I'm reading a specific excerpt from the Bible per week based on a schedule posted on jw.org . I made a javascript script that takes the paragraphs and verses from each chapter and shows the sum of the verses. So I have this entry: (The ex...
asked on 24.11.2015 / 00:17
4
answers

Meta Author does not incorporate into website

Whenever I share a post from my site on my Facebook page, the author's name appears on the news side. But this week, it stopped appearing. I was researching and saw that it is problem with meta author . I had already asked a question pertaining...
asked on 22.10.2017 / 02:52
1
answer

Doubts about MySQL integration with Java

I am creating a system in NetBeans, using the Java language and the MySQL database. I wrote the following code to make the connection between the program and the database: public class Conexao { private static final String DRIVER="com.mysql.jd...
asked on 21.12.2016 / 13:56
1
answer

Why use implements?

What's the difference between using btn.setOnClickListener(new OnClickListener() { and public class MainActivity extends Activity implements OnClickListener{ I've been doing an Android course and my teacher said that implements only...
asked on 27.06.2014 / 02:31
1
answer

What maximum size can a JSON file have?

I will give an example to explain my doubt: I need to retrieve image information from an API, this image bank returns JSON's with information of the images I need, in total there are 33 million images and I will request 100 in 100 thousand....
asked on 30.11.2017 / 17:31
1
answer

Why does 2 * i * i tend to be faster than 2 * (i * i) when i is integer?

The two multiplications, 2*i*i and 2*(i*i) , are equal and should generate the same result, which only changes is the order that the multiplications are made, but apparently they are treated differently by the interpreter. > In th...
asked on 03.01.2019 / 12:19
1
answer

Use local files if CDN is Offline

I would like to know if it is possible to perform a callback if a CDN is offline the system uses the local files. Ex: I use the Fontawesome CDN but if the user runs out of the internet or the CDN goes offline, it is possible to create a callb...
asked on 11.05.2015 / 16:48
2
answers

What is a Regression Test?

In the subject of Software Testing the teacher approached a term called Regression Test , this within the discipline of software testing. So this term gave me some doubts about this software. Questions What would the Regression Test be?...
asked on 27.03.2018 / 16:01