Questions tagged as 'java'

Tagged questions
3
answers

Join objects inside collection of different objects

How do I "merge" or concatenate an object into a collection of different objects? I've tried redoing but it always gives the same error. public class Prova { private String titulo; private int numQuestoes; private String discipli...
asked by 09.12.2017 / 15:30
1
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Retrieve BigDecimal Value from @PathParam

I have the following call http://localhost:8080/app-teste/produto/1234/76.60 and I want to recover like this: @Get("/{produtoDto.codBarras}/{preco}") public void produtoComPreco(ProdutoDto produtoDto, @PathParam("preco") BigDecimal preco...
asked by 04.01.2018 / 15:25
1
answer

FTP directory path with spaces

Good morning, I'm having trouble getting to a subdirectory on ftp, the name of one of the subdirectories has space, so I can not move forward. I'm doing a project in Java. Could someone please help? ftp.changeWorkingDirectory("/Premium%202.0/E...
asked by 03.01.2018 / 13:19
1
answer

Error creating fragment android studio

I'm doing an android course that has navigation in bars and for that is used fragments, I did the way the video however the tabs appear but the content of the fragments does not, in the console I have this error: RecyclerView: No adapter atta...
asked by 07.01.2018 / 01:03
0
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How to include prelude.jspf in java config spring boot

I'm migrating a Spring MVC 3 application to Spring boot, this application had its web.xml with the prelude.jspf configuration where it contained all JSTL imports from jsps. I want to migrate this configuration from xml to java config but found n...
asked by 20.12.2017 / 12:04
1
answer

Problems converting date to calendar

Trying to convert date from a date to calendar. Using springBoot. I was not clear about the true cause of the exception. Could someone help? @SpringBootApplication public class Boot { public static void main(String[] args) { Spring...
asked by 06.12.2017 / 11:46
1
answer

Pass value from jTextField to NamedQuery

I have some jTextfFields where I need to send to DAO its values, these values are arriving correctly in DAO , however the return of NameQuery is being null . There is no error, only the return is null , con...
asked by 03.12.2017 / 13:37
0
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JSF and JPA with EclipseLink: Inserting element twice in the database

I'm working on software and I'm having a headache to insert some related objects. It is inserting this object twice and the error is not visible. To see the whole project, follow the link from github: Complete Project . The classes that are...
asked by 03.12.2017 / 15:24
1
answer

Doubt object vector

I have a question about how to proceed, there are syntax errors as you can see. But my knowledge is basic and I'm trying to improve. I have the following program. A Register of Flights, only with number, origin, destination and number of places....
asked by 02.12.2017 / 17:03
0
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How to make a thread to wait for another class to be terminated and continue the code?

As described in the precise code of a solution to give a pause in main until it waits for some call to continue the code of the main class. I know this is resolved with thread , but so far I have not figured out how to use...
asked by 16.12.2017 / 09:28