Questions tagged as 'java'

Tagged questions
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MySQL and JasperSoft

I need to generate a dynamic report through JasperSoft, the result of querying three MySQL tables. The tables are: CREATE TABLE IF NOT EXISTS 'tcc'.'Catalogo' ( 'idCatalogo' INT NOT NULL, 'titulo' LONGTEXT NULL, 'Autor' LONGTEXT NULL,...
asked by 08.07.2018 / 00:13
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Industry problem setImageResource

Hello, I have a project that I draw drawable images for a ListView, the problem is that when I run the project does not appear the images seated, can anyone help me to find the error? LAYOUT main_activity <ListView android:id="@+id/l...
asked by 31.05.2018 / 20:22
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JAVA NullPointException

When I click on my button in the view the parameter is not arriving in my java attribute responsible for the button public Map<String, Object> getFiltroGlobalMap(){ Map<String, Object> mapFiltrosGlobais = new HashMap<String...
asked by 29.05.2018 / 20:44
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Use of digital certificate A1 installed on the server

I work with the development of a Java Web application for electronic medical records management, in which it is necessary to digitally sign XML documents. This application is used by more than 200 users within the hospital environment and the...
asked by 29.05.2018 / 20:20
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Method to invert a Simple Chained List

How to make the method ImprimirLista() print the inverted list. Exemplo [1][2][3] Imprimir [3][2][1] Edit 1 I can not use Collections public class ListaEncadeada { No primeiro,ultimo; int totalNos; public ListaEncade...
asked by 29.05.2018 / 19:46
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Register "https" protocol with certificate for SOAP request (Axis 2)

I created a service to register the "https" protocol and inject the certificate into it using the SocketFactory implementation, but only one request works fine at a time, but when using multi-threading it does not work, certificate at the time o...
asked by 15.06.2018 / 16:58
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How to receive messages from firebase console in android in the background?

I have an app that sends notifications from the firebase console and my notifications do not arrive on the phone when they are in the background but when they are in the foreground with the app open the notification arrives normally. I would app...
asked by 15.06.2018 / 13:47
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Receiving FCM messages in Java application

I'm researching Firebase Cloud Messaging in order to use it as a messenger on a platform where there will be web systems (Java, Spring) at one end and the other App's (ionic) - both with a RestFull (Spring Boot) API. However, I did not find...
asked by 04.06.2018 / 13:49
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Example of Navigation Drawer

How do I add a Navigation Drawer to an Activity ? I looked at several sites but found the download projects only and did not explain how to do it.     
asked by 03.06.2018 / 16:09
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JAVA - Connection with database - SQLException error: Parameter index out of range

Hello! I'm new to Java, and I came across this problem: Netbeans accuses me that I am not respecting the SQL parameter limits, but they are correct. Part of the error in question: Testando conexão com banco de dados... jun 03, 2018 8:1...
asked by 04.06.2018 / 01:14