Questions tagged as 'java'

Tagged questions
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NumberFormatException in GUI

I have a program that simulates a pizzeria system where product prices are stored in enums as a double. The% window% takes these price values and displays it on the screen in this way: JLabel . Where "R$ "+ p.getValue; is the price....
asked by 06.04.2016 / 21:58
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Problems implementing a method that sends email

import java.util.Properties; import java.util.logging.Level; import java.util.logging.Logger; import org.apache.commons.mail.DefaultAuthenticator; import org.apache.commons.mail.EmailException; import org.apache.commons.mail.SimpleEmail; import j...
asked by 05.04.2016 / 16:51
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Screenshot Function on android

I'm putting the screenshot function on the calendar, but the photo is not coming out as it should. Butusingthenativeandroidfunctioncomesoutcorrect Here's some code snippet: View v1 = getActivity().findViewById(R.id.ScrollcalendarView)...
asked by 03.04.2016 / 18:07
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Compound interest with switch and [preferably] without break in each case

Hello. I have the table below, which calculates interest on interest [0.5% per month, cumulative] and would like to do it with switch and [preferably] without break in each case. I also wanted the case to start with the last instal...
asked by 04.04.2016 / 15:32
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Internationalization with Enums Labels

Hello, I'm trying to internationalize with labels coming from an enum: public enum WeekDay { MONDAY("msg.week_monday", "mon"), TUESDAY("msg.week_tuesday", "tue"), WEDNESDAY("msg.week_wednesday", "wed"), THURSDAY("msg.week_thursday",...
asked by 30.03.2016 / 19:25
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Problem with JTable

I have a problem with a JTable. I made a method in DAO that calculates a total of products consumed, this method is called on Screen in the register button, every time I register a precise consumption that calculates the quantity according to th...
asked by 21.05.2016 / 05:52
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Error trying to save record to bank

After completing the form and clicking Save, the following error is occurring: mai 20, 2016 7:14:52 PM com.sun.faces.context.AjaxExceptionHandlerImpl handlePartialResponseError GRAVE: javax.el.PropertyNotFoundException: /web/crud/cadastrar-hab...
asked by 21.05.2016 / 00:20
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Render component after clicking button

I have a Yes / No button. I would like to click on Yes to render an element below. As the example in my page: <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR...
asked by 20.05.2016 / 23:24
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Call Activity open via Notification without losing information

I'm having trouble calling an Activit through Notification, every time I press the notification the Activity loads from scratch, losing the data that was in the one that was open. NotificationManagerCompat nm = NotificationManagerCompa...
asked by 19.05.2016 / 14:44
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Format date for Brazilian format using webservices

How to format a date timestamp for timestamp br. ex. 2015-02-03 15:37:00 para 03/02/2015 15:37:00 obs: date is text     
asked by 25.04.2016 / 20:40