Questions tagged as 'java'

Tagged questions
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Running multiple instances of the same application on a single Memcached Server

I have a problem with "dockerized" and Memcached applications, to store some values, apparently when I start a new instance of Docker, which runs a Spymemcached client, all the amaranezed data in the cache is invalidated, so if I previously stor...
asked by 16.05.2018 / 03:36
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Jasper with JPA connection

I'm in a Java Desktop project using JPA, just to issue some reports where I'm using jasper. The reports have sql queries the user interface will only pass parameters to the data filtering. I found it difficult to get the connection so in a qu...
asked by 16.05.2018 / 04:40
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assign an object from a list as an attribute of another class

I am doing data import through txt file, and packed in that class which has two attributes of type object, vendor and product. When I read the txt file, I pass as a parameter only the code of the same ones, and I try to check the list if they ex...
asked by 16.05.2018 / 14:04
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When I receive notification of PagSeguro with payment status, it gives 500 error when pushing in my API

The code below is the PUSH created so that PAGSeguro sends me notification of the status of my payment. But the error returned is 500, and in their forum there are no answers so far. Anyone who has ever had this problem can help me? @PostMappi...
asked by 15.05.2018 / 21:07
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Read Two Notes and Make Media If They Are Valid Notes

I'm having trouble solving the exercise below IshoulduseDesvioCondicionalAndbymy"thoughts" I think I should use Desvio Encadeado I know that both notes must meet the criteria of having values between 0 and 10, and only then can I a...
asked by 11.05.2018 / 00:04
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Validation of Java Vehicle License Plate [closed]

Does anyone know how to validate new vehicle license plates? Vehicle plates should start using Mercosur standard in 6 months Instead of 3 letters and 4 numbers, as it is today, the new plates will have 4 letters and 3 numbers, and may be sc...
asked by 10.05.2018 / 14:38
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Problem with Spring Tools Suite

I'm starting my studies with Spring and downloaded Spring Tool Suite version 3.9.4. to develop web java applications. I had previously installed the JDK version 8. I am using Ubuntu 18.04. Given this information, let's get down to the problem:...
asked by 10.05.2018 / 17:35
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Place field to search in a Spinner

I need a search field on top of my spinner to not use scrolling on the screen and save time for the user. Thanks. Code where spinners runs: public class FormularioMateriais extends Activity { EditText editText_matricula; Spinne...
asked by 13.05.2018 / 07:12
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How to use different implementations of the same interface

I'm having trouble understanding the diagram and the specifications below. How do I make the double getCalculaFrete() method return the same value returned by the double calcularFretePedido() method, being called by the calcu...
asked by 12.05.2018 / 21:37
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Product Combo and play value in inputText

I am developing a DOCUMENT registry with parameters like Material, Name and other data. And as it will work, I make a normal PRODUCT registration with Material and Name parameters and in the registration screen of the DOCUMENT I want to open a c...
asked by 27.05.2018 / 00:36