Questions tagged as 'java'

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App gets white and Suspending All Threads in LogCat

Galera, I'm studying Android on my own and in my studies I created a game of the gallows, except that when I replace the word to be discovered in String "word" with a word that contains repeated letters like "Horse" white for a few moments in th...
asked by 20.01.2016 / 15:38
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PopupMenu appearing at the top of the screen

I made an implementation of a PopupMenu being called inside a Adapter of a ListView , the error that is happening is that when I call PopupMenu , it is being displayed at the top of Activity . The correct one is t...
asked by 21.01.2016 / 19:54
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JSF Converter Generating Exception

In order not to escape the scope of the previous question: Displayed product is the lower within the group (Criteria) The issue apparently appeared to be resolved, although we were unable to verify that it was indeed correct due to an excep...
asked by 18.03.2016 / 02:22
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Open Panel via a JMenuItem

I need to know how I can JMenuItem open JPanel , that is, by clicking JMenuItem , open the corresponding JPanel, this in Eclipse, through windowBuilder. This is the image of my screen with the menu: Image of the screen...
asked by 17.04.2016 / 22:12
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Digital Certification A3 [closed]

Recently I was engaged in the development of an application that should use Certificação Digital A3 using token . I have no experience with digital certifications and wanted to know how to start with digital certifications type step...
asked by 16.02.2016 / 21:53
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AudioInputStream.close () not working (Unable to delete file)

I'm having a problem with an AudioInputStream. After making the adjustments I need, I give AudioInputStream.close() (equivalent to InputStream.close() ) so I can delete the file later. But doing so the following exception is d...
asked by 18.02.2016 / 18:00
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How does eclipse create a project? [closed]

   I want to understand how eclipse generates a project Which folders are required within the project directory? ex: src / What files it generates to identify a project eclipse? How to create an eclipse project without using the...
asked by 14.01.2016 / 20:34
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If the project name is not "secsu"

Hello, today I created a project to test with the name "secsu" and it works perfectly, but when I try to change the name ( Refactor & Rename ) it simply means the error. Code: package secsu; import org.lwjgl.Version; import org.lwjgl.glfw...
asked by 19.01.2016 / 17:49
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Replicate message to all clients of a chat [closed]

I need to replicate a client's message to everyone who is logged in, except the client that sent it. Below are the classes I have so far. How could you replicate these messages? public class Servidor { public static final int porta = 4444;...
asked by 16.01.2016 / 10:00
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Apostille caelum fj21 error driver mysql

Good afternoon guys, Beginning I'm studying the caelum Java WEB booklet but the following error is showing up. I already imported the MySQL driver, I switched between the commented line and commented the above, but it is not working the brows...
asked by 18.01.2016 / 17:56