Questions tagged as 'java'

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Problem when moving a file

I have a problem, I want to move all the files in a subfolder to the root, and in case the root folder has a file with the same name, change the name of the file to be moved. Example this is my directory C: /raiz/Hola.txt C: / root / Adiostxt C:...
asked by 01.08.2018 / 11:27
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Access to the File Provider denied on Android

I have an associated activity for opening a type of file, using a file explorer, when selecting the document and that opens with my app, sometimes I receive:    Caused by: java.lang.SecurityException: Permission Denial: reading nextapp.fx.fil...
asked by 01.08.2018 / 07:05
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How to show an image when we move from activity in a ListView

I'm having problems showing an image when I click on a list and activity step. The problem I have, I think, in the MainActivity.java line intent.getParcelableExtra("foto", datos.getFoto()); I think I'm having a hard time the parameters...
asked by 01.08.2018 / 07:34
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Hibernate sqlRestriction query

Good morning I have a problem when making a query with Hibernate, the thing is that I would like to join two consultations in one and I have looked to try it with joins and others but no idea. Let the queries have if you can guide me please, wha...
asked by 01.08.2018 / 09:00
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ERROR SHOWING DATA MySQL (ONLINE) IN LISTVIEW

I'm carrying out an application to show some wines, and I have an error that after researching many sites I can not understand. The fact is that it does show me the data, but with a "click" of delay. That is, the first time I click, it does not...
asked by 01.08.2018 / 12:06
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certificates to integrate applications

I present the current situation: I have two web projects (Maven) within a Tomcat 7 server and my intention is to integrate one within another, I have configured the button to send the request, and it is seen trying to access the second applicati...
asked by 01.08.2018 / 12:24
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I get this error when connecting to the database "I / O error: Invalid number format for port number"

This is what I have inside the properties file: hostname=localhost port=1521 database=xe username=xxxxxxx password=xxxxxxx jndi =dbp_props And here the code package ConexionBD; import java.io.IOException; import java.io.InputStre...
asked by 13.09.2018 / 00:59
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ACTION_FOUND does not get devices

I'm trying to get a list of devices with bluetooth but not ACTION_FOUND is not working, it's my first bluetooth test app, I hope you can help me. this is my MainActivity public class MainActivity extends AppCompatActivity { private List...
asked by 01.08.2018 / 04:25
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how to make bulk insert with hibernate and Java?

I have a problem, I need to insert thousands of records that are read from a file.properties, the idea is to make bulk insert but when I execute the batch it asks me that the ID of the table is not NULL, I do not understand why it asks for it, H...
asked by 31.07.2018 / 00:13
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why when I try to open my game screen in libgdx from android from an activity I get a black screen as an output?

Class that opens from another class "AndroidLauncher extends AndroidAplication" from which this class "screen" is launched. public class Mgame implements ApplicationListener { private SpriteBatch batch; private Texture font; @Override publi...
asked by 29.07.2018 / 19:44