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1
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Error in java "java.util.ConcurrentModificationException"

Because I reason this exception error when using the iterator in this line: /*if((itTrayectos.next().getIdEinicial() == idEInicial) && (itTrayectos.next().getIdEfinal() == idEFinal))*/ package Grafos; import java.io.*; import java.uti...
asked on 12.12.2016 / 20:15
1
answer

Python 3.x: ImportError: can not import name 'scandir'

I'm trying to use the scandir module and it gives me the error: ImportError: can not import name 'scandir' . I do not understand, it is assumed that the version I am using, 3.4.4 already has this module implemented. Does anyone have any idea ho...
asked on 06.12.2016 / 12:56
2
answers

Can I use the same driver to register two types of people?

Well I have a form in php I have a select in which I choose if the type of client to register is natural or legal, by selecting which of the two shows the corresponding form. The problem is that to register each client type I am using two contro...
asked on 08.12.2016 / 02:32
3
answers

As valid, with laravel, that a field is only numeric?

I have tried with what appears in the documentation of laravel, but it does not help me this is my code: 'cedula' => 'numeric|required|unique:personas|min:6|max:8', This way, if I put letters, it says: "cedula must be numeric."...
asked on 18.11.2016 / 00:41
2
answers

Because on my website some fa fa-icons stopped being seen

Good morning everyone, today I have a very intriguing question. I comment I have a website in production, that until not long ago it worked great and now they stopped seeing 2 fafa icons the rest if they are seen but those two no longer. And sin...
asked on 17.12.2016 / 15:49
2
answers

SVG file that inherits the current color

Using SVG inline I can make the current color inherit using the value currentColor for property fill . In this way I can make my image adapt to the color of the element that contains it. For example: .rojo { color:red;...
asked on 22.11.2016 / 17:45
2
answers

Know the type of object and its properties from Listobject

I have a method that receives a list of objects: private void escribe(List<object> lista) that a priori I do not know what class they are and I want to know at the time of execution the properties of each of the objects within the lis...
asked on 03.08.2017 / 09:46
1
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Text string matches in Python 3

Dear, does anyone know a method to find non-exact matches between strings of text? For example: I have the following text "STATUS MSG PACK ACM L" (column 1) and should return "PACK L" (column 2). I have 2 lists, one written by a person...
asked on 27.07.2017 / 13:57
2
answers

"keytool" is not recognized as an internal or external command, program or batch file executable

I am trying to implement Firebase in my Android Studio application and since I want to use Firebase Auth I need the SHA-1 signature certificate, and to get it I need to execute this code in the CMD: keytool -exportcert -list -v \ -alias androi...
asked on 06.08.2017 / 05:06
1
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Error in syntax with inner join in java

Good people, I am trying to fill a combobox with a query with inner join in java that is causing me conflicts and I can not understand it, I get the following error: My query is constructed in the following way: public void c...
asked on 01.08.2017 / 00:10