Questions tagged as 'java'

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Error building jar on netbeans

I'm trying to clean and build my project in netbeans but it returns me the following error /home/foxwalker/NetBeansProjects/Odontologia/nbproject/build-impl.xml:982: Existing manifest /home/foxwalker/NetBeansProjects/Odontologia/build/null8754...
asked by 10.11.2018 / 21:17
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server timezone error is unrecognized wildfly 14 Connector / J 8.0.13

I'm setting up my environment using wildfly 14.0.1.Final and the connector mysql-connector-java-8.0.13. I have the following error when configuring the connection profile and I make a connection test:    java.sql.SQLException: The server t...
asked by 11.11.2018 / 01:47
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When trying to access the gallery "Method processed more than once"

I'm trying to open an image with the gallery's default application, but it returns some 300 lines with the error "Method processed more than once" in this code snippet: Intent intent = new Intent(Intent.ACTION_VIEW, Uri.fromFile(imagePath))...
asked by 10.11.2018 / 22:14
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FTP Download "Read-only file system" error Android

I have a problem when trying to download a test file to my FTP server, it will respond with "Read-only file system". Thanks in advance. public boolean Conectar(String host, int port, String user, String pass){ boolean status;...
asked by 30.10.2018 / 13:01
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Add attribute in an xml via notation

I have the following structure in java package xxxxx.entities; import java.util.List; import javax.xml.bind.annotation.XmlAccessType; import javax.xml.bind.annotation.XmlAccessorType; import javax.xml.bind.annotation.XmlAttribute; import jav...
asked by 07.11.2018 / 17:57
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Doubt about foreign key hibernate

insert the image description here The diary_place table is being created with 2 user_id field, I want it to be only a user_id referenced as foreign key for the diary and place tables. I want the result to be the same as the second ima...
asked by 07.11.2018 / 19:35
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Error when trying to start the WebLogic 12 server in Eclipse

Hello, I'm trying to use WebLogic 12 in Eclipse to develop Java applications, after I configure the domain to try to start the server is giving this error: Error: Could not find or load the main class weblogic.Server Does anyone have any i...
asked by 07.11.2018 / 18:35
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How to pass data from a JTextField to a Postgresql Date field [duplicate]

I would strongly urge you to help me solve a Date (SQL) data insertion problem for new student enrollment in the Crud project developed by me in the code below. The method containing the INSERT INTO command does not insert a new record in the...
asked by 07.11.2018 / 19:00
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Insert data, convert Int to String [duplicate]

The error happens because in the Official_Data class (), error variables are declared as INT, I can not remember which code to correct conversion.     
asked by 27.10.2018 / 06:58
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ArrayList JAVA doubts

I have an "ItemSolicCompra" object and inside this object has another object called "Product" and product has attributes (name, id, etc ...). I have a List that on some occasions these products are repeated (id, name, qtde). I would like to k...
asked by 26.10.2018 / 19:38