Questions tagged as 'java'

Tagged questions
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Doubt over BufferedImage and pixel manipulation

I would like a more technical and in-depth explanation of what happens in this line of code (I've researched before but understood only superficially): BufferedImage bf = new BufferedImage(Window.WIDTH,Window.HEIGHT, BufferedImage.TYPE_INT_RGB...
asked by 21.09.2018 / 07:03
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Waiting Fluent method does not work

I would like to use Fluent Hold, to wait for text to load in a certain field, after a click on the "load" button. But the method loadLoad (), is not acting, selenium goes to the next method. public void carregarPlaca() throws InterruptedExcept...
asked by 21.09.2018 / 15:37
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Spring MVC - Multiple Builders

I have a problem where a Framework I'm using needs a default constructor, this is calling my Service class: @Service public class FuncionarioService { private FuncionarioDAO dao; public FuncionarioService(){ } @Autow...
asked by 28.09.2018 / 20:29
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Framework DWR - Does not execute

I'm trying to use the DWR framework to populate a select from the result of another select in my JSP. Only have no action after selecting the first select. JSP 1st SELECT: <select onchange="verificaHier...
asked by 28.09.2018 / 19:21
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javax.servlet.ServletException

I'm doing a basic user registration with Servlet . When I click the register button I get the following error page (everything has been reviewed and is working perfectly, I believe it is something related to Hibernate, but nothing I hav...
asked by 19.09.2018 / 05:57
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How to filter more than one word in Java Web

So here is my filter @NamedQueries({ @NamedQuery(name = "Doencas.findAll", query = "select d from Doencas d"), @NamedQuery(name = "Doencas.findFilter", query = "select d from Doencas d" + " WHERE UPPER( d.nome ) like :filtro or UPPER (d.sintom...
asked by 29.09.2018 / 06:59
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ObtainMessage does not call Handler

I'm doing a communication between arduino and android, the android already manages to send command to the arduino quietly, however now I want to read commands received from arduino. I managed to make it work however with a class that extends thr...
asked by 28.09.2018 / 23:36
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Insert FXML into Scroll Pane and pass data to controller

My system consists of a main screen, which has a scroll-pane that I'm populating with a list of other FXML scenes, a code I picked up from an example on the internet, follows the code: @FXML private Label label; @FXML private VBox pnl_scroll;...
asked by 29.09.2018 / 15:33
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Compare rows between .txt files

Good afternoon, I need to compare two .txt files and check that each character is the same as the other file and store which characters are the same ... Type a template A prova.txt file has the following content: 1;VVFF 2;VFV...
asked by 25.09.2018 / 19:28
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I can not get the URL of the image from a JSON file even though it is implemented in the same way as other data that is correctly retrieved

I'm developing an application based on another application, in this case the app is a map (provided by the Google Maps APIs) where points are added map and can be clicked to display more information about the location, such data (name, descriptio...
asked by 20.09.2018 / 00:12