All Questions

1
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Is it possible not to declare new memory for a dynamic arrray?

Well, I came across this, and I do not know what to think, I know that to allocate memory the operator new is necessary, however I do not understand why this code works ?, and in any case, what are the possible failures? (Maybe it's a new...
asked on 22.06.2017 / 08:22
1
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Change color text main menu android?

I want to change the text color of a item that groups a menu . The xml is: <?xml version="1.0" encoding="utf-8"?> <menu xmlns:android="http://schemas.android.com/apk/res/android"> <group android:checkableBeh...
asked on 26.06.2017 / 13:54
3
answers

Connect with the web service of SII AEAT (soap PHP)

First of all, a greeting to all those interested in this question. I begin with the explanation of the problem: After trying to establish the connection with the web service of AEAT for the management of the xml files I have found a good ston...
asked on 09.06.2017 / 12:54
1
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JPA problems persisting cascading a subclass

I have the following classes @Entity @Table(name = "personas") @Inheritance(strategy = InheritanceType.JOINED) @ClassExtractor(PersonExtractor.class) abstract public class Persona implements AbstractEntity<Long>, Serializable { privat...
asked on 02.03.2018 / 00:17
1
answer

optional groups in regular expressions

Answering another question in SO, I was asked the question of how to deal with regular expressions when they contain optional groups. For example, if you would like to capture the phone number and favorite number in the following text:   ...
asked on 17.03.2018 / 03:14
2
answers

Header: location - Does not work

Perform a project that required the pages to have .php extension My problem is that when the page must redirect with the label: header("nuevapgina.php"); , it simply remains blank, and in the project I use it in 3 different occas...
asked on 05.03.2018 / 17:28
2
answers

Django: error in configuring url's

I'm Using django in its version: 1.11.4 python 3.6 in linux debian I have the following files configured in settings.py INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes',...
asked on 08.03.2018 / 06:49
1
answer

Merge circle with an icon on Android

To create a circular icon based on the vector icons of Android Studio, I do the following: <?xml version="1.0" encoding="utf-8"?> <layer-list xmlns:android="http://schemas.android.com/apk/res/android"> <item> <...
asked on 16.03.2018 / 11:17
1
answer

Distance between LineString and point

I have the following LineString Line = [(-58.39323087479187, -34.64522852285068), (-58.39493519860744, -34.64593911202303), (-58.39540370387294, -34.64612018963881), (-58.39577715270643, -34.64624297063709), (-58.3961720086682, -34.6463673530...
asked on 14.03.2018 / 13:07
2
answers

How to format a date of type Date () and add a number of days depending on a format entered?

Good afternoon everyone, I would like your valuable help to be able to do a function that adds me the days to any date entered by the user, I have been looking for a good time on the web but the only thing that appears is to add days to the c...
asked on 14.03.2018 / 23:07