Questions tagged as 'java'

Tagged questions
2
answers

Fill ArrayList Without repeating the values

Good I am new here in this page, My problem is the following one, although I am sure that it will be simple for you; I have an ArrayList with a number of N sellers that can or can not be repeated, but I want to pass said vendor to another ArrayL...
asked by 13.05.2018 / 21:47
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Doubt about use of catch in Netbeans

I'm new when it comes to java and a doubt arose and I can not find anywhere to solve it. I'm doing a project to learn well how to use Netbeans and mysql. My question is the following: I am using a catch to show messages according to the error. M...
asked by 13.05.2018 / 22:21
1
answer

Doubts about the use of Threads, AsyncTask and Handler

In this code they use threads , handlers and AsyncTask , what I do not understand is because they use the 3 and not only threads or handlers , What is the difference? In the code I have commented the reasons and why they were used fr...
asked by 06.05.2018 / 15:33
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Error Artifact Glassfish with IntelliJ IDEA JAVA JSF

   [2018-05-07 11: 19: 12,145] Artifact DemoJSF: war exploded: Artifact is   being deployed, please wait ...       [2018-05-07 11: 19: 17,472] Artifact DemoJSF: war exploded: Error   during artifact deployment. See server log for details....
asked by 07.05.2018 / 16:37
2
answers

How to modify the Action Drawer of Navigation Drawer Activity?

We can say that I have the same thing that Android Studio itself adds by default, its layouts, its activities etc ... But I would like to modify the ActionBar that adds me by default, and I can not find anywhere where the configuration is. of th...
asked by 07.05.2018 / 15:48
1
answer

Call a class from the MainActivity or Import class from another Android studio project

Good! I have a big mess, I am developing an application which will not be in the market "google play" so I added an AutoUpdate to keep the application up to date, it turns out that the autoupdate I did creating another project (yes, I did...
asked by 07.05.2018 / 06:43
2
answers

Problem in Switch-Case

I do not know if there is already a post about this, I am trying to make a Menu that is quite basic using the aforementioned Switch-Case . I have an error which is that option 2 should add a player to a team, the team is created in option 1, th...
asked by 21.05.2018 / 16:16
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Problems with date field in JFXTreeTableColumn of the JFoenix Library

It will not let me compile because it says that I can not cast the data, this is the error that I get when compiling my project. When removing the column from the Date, my project works with all the fields of the Table     
asked by 21.05.2018 / 17:31
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How to reset Beans Java

a question that is perhaps simpler than I think ... I created a web service, for one thing or another I had to delete it and recreate it, but the already created Beans appear and it does not allow me to map the classes from the database. How...
asked by 21.05.2018 / 16:45
6
answers

What is the solution to all present, past and future NullPointerException errors?

I have my Java program and I get a NullPointerException and I have seen other questions but they are from people with other programs and it does not work for my program and I want to leave here the 2,000 lines of my program so that you solve the...
asked by 08.01.2017 / 18:54