Questions tagged as 'java'

Tagged questions
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How to display an array graphically?

I have a Tabuleiro[][] tabuleiro = New Tabuleiro[20][20] array. It contains objects of a class not yet implemented, which will have some values, such as cell color and a placeholder. I would like to know if you can graphically display thi...
asked by 09.04.2015 / 22:07
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Method that checks if the status is ok

I have this code just below that makes a connection to my server. I would like to perform a check of the status of my server through a method that connects to that server, how can I implement this? public class ConnectionRabbitmqFactoryConsume...
asked by 13.04.2015 / 20:55
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Calculate clicks per second

How do I calculate how many clicks were given in 1 second?     
asked by 03.03.2015 / 22:24
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EAD: Configuration error while running the tests

I downloaded the videos of the site for studies, in the video of Modulo3_Video3, about Configuration, I got an error when running the test after using the Configuration feature. 1 - I added the file src \ main \ resources \ inscription.proper...
asked by 02.03.2015 / 20:38
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Print enum field in JasperReports

I created a Enum that has a description field for each of your items. In my report in Jaspersoft Studio I want to print this description field and not name() of Enum . I created a field in the report, but when se...
asked by 04.03.2015 / 17:29
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Problems with .jar

Good morning, I have a Maven project running on Netbeans, however, the .jar generated says at runtime: "no main manifest attribute in example.jar" . p> I heard that there could be some problem with the file MANIFEST.MF , but I d...
asked by 17.03.2015 / 14:43
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Send message from a java web application to whatsapp [closed]

Well, I would like to know if there is a possibility to send a java web application message to the whatsapp application. Is there a class or api that can help? Example: the person makes a purchase and when that purchase is made, send a messag...
asked by 18.03.2015 / 13:09
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Accessing android Wifi settings (IPV4)

I'm accessing the Wifi settings of Android, and it's accusing like I'm looking for an IPv6 default IP. I would like to know if there is any WifiConfiguration property to define as IPV4     
asked by 17.03.2015 / 19:15
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Client - Server error console

I have a client and server running to send messages from a Chat application but give me an error in the console when I try to write a message. Can someone explain the error? Console error Cliente ligou-se ao servidor Exception in thread "AW...
asked by 01.12.2015 / 01:48
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JavaFX TableView apparently receives the value but shows null

Hello, I'm migrating my program to JavaFX to study only, I want to stop using Swing and only pass the FX, but as in a previous time I gave up due to my difficulty in TableView without delays: I have a problem, my code searches the MySql database...
asked by 03.12.2015 / 13:27