All Questions

1
answer

Copy and write image launches java.lang.IllegalArgumentException: image == null!

I've created an algorithm to go through a directory tree and mirror its contents. The exception occurs when the program enters a directory with 400 images. It makes the copies of the images until it reaches an image around 320 and throws the fol...
asked on 21.08.2016 / 20:51
1
answer

I can not save the information to a local database!

I'm having trouble saving the information entered by the user in the PostgreSQL database, I've developed an application in Android Studio and I'm using an external local database with PostgreSQL to save the data, however when I run the applicati...
asked on 08.09.2016 / 02:46
1
answer

List being modified without implementation

I have a problem where the list I am working on is being modified even though there is no passing of values to it. from random import * from numpy import * m=2 lista_inicial=[[1, 2], [0, 2], [0, 1]] lista_aux = [] lista_aux = lista_inic...
asked on 14.09.2016 / 14:11
2
answers

"Can not read property" after an http.get request

Hello, how are you? I have the following problem. I'm making a RESTful request (http.get) and I'm writing the received object into a variable within the $ scope. However, when I try to access this variable inside the controller I get the foll...
asked on 20.10.2016 / 04:48
2
answers

How to display HTML code?

How can I display my code HTML ? I have a field where the user can change his nick by placing colors, and I want to display the code used as a hint for the user. My code: <pre> <code> <span style="color: red">G...
asked on 24.08.2016 / 04:17
1
answer

How to extend Widgets length within a QScrollArea?

I'm looking to build a question form in Qt. As there are several questions to be answered, it is necessary to allow the scrolling of the form, so I used a QScrollArea . The questions are all answered in a Likert scale, so I adjusted the...
asked on 22.08.2016 / 21:13
1
answer

.exe file in Visual Studio 2015

How do I generate an executable that runs on any machine without .Net installed? The one in the bin/debug folder is not useful because it needs .Net to run.     
asked on 21.08.2016 / 23:53
1
answer

How to convert array keys to all uppercase or lowercase?

I'm getting data from a Webservice , through a response in JSON. Convert this data from JSON to array , via json_decode . But one thing that's bothering me is the fact that the keys are coming with the name in CamelCase....
asked on 23.08.2016 / 15:41
4
answers

Node replaces Nginx? Does anyone explain this architecture to me?

I was reading a article about the "dawn" of JavaScript companies. The "dawn" in the sense that things are only beginning. That is, according to the author, the future is JavaScript with NodeJS, and companies will sooner or later have to replac...
asked on 09.09.2016 / 04:07
1
answer

Extract index for repeated elements in lists in Python

If I have a x list that contains multiple values, and a few repeats, and I want to have the index for each element, how can I do it? I tried doing it using the .index() method but it only returns the index of the first element. &...
asked on 17.09.2016 / 17:26