Questions tagged as 'java'

Tagged questions
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Tomcat maven web project rest application do not work netbeans

Personal I created a simple application to make a web service I did it as follows netbeans file - > new project - > Maven (web application) I created a class called RestApplication package br.com.teste.testeteste.rest; import javax.w...
asked by 29.03.2018 / 23:01
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Eclipse does not find source code for sqljdbcJar

My code works fine, I can start the connection to the database and everything else without problems. But at the time of creating a statement: Statement stmt = conexao.createStatement(); I get the following error: Thisoccurswithinmy"Obje...
asked by 01.02.2018 / 19:44
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Java Robot does not work in the game, does anyone know if there is a way?

Recently I made a bot for a game and had a problem that had happened to me before. The code runs out of the game but when I click on the game and press to start, only mousemove (robot class, java) works. At the time, the resolution was just r...
asked by 01.02.2018 / 23:11
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How to show the progress of a ProgressBar in the TaskBar of S.O.?

I am using a javafx.scene.control.ProgressBar and a javafx.scene.control.ProgressIndicator , and would like to know if it is possible (and how to do) to show the progress in the Operating System TaskBar, as in the example image belo...
asked by 01.02.2018 / 19:13
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CommandButton does not register in SQL

I'm having trouble with my code, when I make a record of a new vehicle, it says that the vehicle is not being instantiated and is returning null. Here are my settings: DAOLayer:publicvoidadicionar(Veiculoveiculo)throwsSQLException{StringBuilder...
asked by 01.02.2018 / 18:36
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Gradle does not find my main class

I have the following problem. :runErro: Não foi possível localizar nem carregar a classe principal LoadWebService FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':run'. > Process 'command 'C...
asked by 01.02.2018 / 18:01
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Android - Error in Uploading image to server C #

When uploading an image in Android to the server (C #) it generates an error converting the image to byte Array, this happens with some images which is very strange because this error is not always generated, or either depending on the image tha...
asked by 31.01.2018 / 12:14
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Required MultipartFile parameter 'file' is not present when I make a request for Angular 4

I can make a request to upload a file through Postman, but when I make the request of the Angular, the WARN "Required MultipartFile parameter 'file' is not present" Here's my Java API feature with Spring boot. @PostMapping public ResponseEn...
asked by 31.01.2018 / 11:43
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Using @Table Hibernate

How do I use the @Table annotation of hibernate using a variable that returns the name of the table, for example @Table(name = "dep4"+Dados.getCodEmp) ? I am using this form but I get the following error: The value for annotation...
asked by 31.01.2018 / 12:11
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Implement interface with linked lists

Good evening guys, I needed some help here. I'm starting to learn the implementation of linked lists in java, but I can not understand or find a solution to this. I have this interface: public interface ISet<E> extends Iterable<...
asked by 30.01.2018 / 21:29