Questions tagged as 'java'

Tagged questions
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How to automatically pause an audio in java netbeans?

Good day, I know very little about programming, I'm doing a project in netbeans in java with a Jframe, where through a list box you select a concept and hear an audio there Everything is fine until I select another audio and the sounds come toge...
asked by 15.11.2018 / 03:39
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Why does my app stop when using this line of code?

This is the code of my database class. public class SQLite_OpenHelper extends SQLiteOpenHelper { public SQLite_OpenHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) { super(context, name, factory, vers...
asked by 08.11.2018 / 19:29
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Trigger to auto-insert values in a table

I'm new to projecting databases. I have 3 tables: users: +--------+--------+---------+----------+--------+ | userid | name | surname | password | admin | +--------+--------+---------+----------+--------+ | value1 | value2 | value3...
asked by 18.11.2018 / 18:49
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Java - I can not read UDP socket from port / ip

I need to read from an ip / port, using UDP and I do not get it. From an external utility, I see that the reader (RFID) correctly reads from said port / ip through UDP. Now, I want to read it from java and I can not (I clarify that it is the fir...
asked by 22.10.2018 / 16:31
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How to get a data from a JSON chain!

I would like to ask you for some help! It turns out that I have my html form of MenuItem, where I want to insert data into my DB of the menuitem table where your FK is menu_id of the table menu, the case is that in my DTO I am programmed like th...
asked by 30.10.2018 / 15:00
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I get the error RecyclerView: No adapter attached; skipping layout when I try to load a RecyclerView

I'm doing a chat, where I charge it through a RecyclerView. When I enter the chat, I should load the messages, but it does not, and I try to scroll in that recyclerView and I get the following message every time I scroll: RecyclerView: No adap...
asked by 21.09.2018 / 06:05
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Show icons in order in Java Swing

I'm doing a program that shows two buttons with two different colors (in this case Red and Blue) and according to the user presses one or the other it is shown in a label panel that is higher, so that if the user presses the Blue button and then...
asked by 24.09.2018 / 03:40
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Error Java heap space

In my web application, I miss this error, which causes me to restart the server: 13:08:13,508 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/Particulares].[spring-servlet]] (http-/10.199.97.50:8043-26) JBWEB000236:...
asked by 28.02.2016 / 18:29
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How to invoke EJB from a remote server to another server .. using WILDFLY 10 and JSP?

Currently I develop a web application in JSP with WILDFLY 10. Currently my application is divided into modules but I deploy it with the same EAR. My idea is to divide the application into several modules, an EAR that is a remote ejb which han...
asked by 14.06.2016 / 15:49
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Save a value on Android

I want to take the value I have in TextView , add it, save it and repeat this process every time the button is touched, but I do not understand why I can not save it. My code: public class MainActivity extends Activity { Button b...
asked by 09.06.2016 / 18:14