Questions tagged as 'java'

Tagged questions
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Problems with Google Gson: Unparseable date: "Apr 19, 1991"

Work with Google's Gson to persist and retrieve Java Objects. I use this code to create and format Gson, in order to prepapake it to receive certain date formats, which comes from forms and the database. Gson g = new GsonBuilder().registerType...
asked by 27.12.2017 / 19:27
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How to change decimal delimiter in primfaces chart?

I have a problem that my decimal delimiter in the primefaces chart component is set to be . , how do I change to , ?     
asked by 28.12.2017 / 20:53
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Exception does not start application start

Below is my pom.xml and the exception that appears on the console. I've followed all the recommendations I've found, usually speaking to redo the steps to generate the project or to check the dependencies. I'm using java 8 and tomcat tbm 8. Any...
asked by 14.12.2017 / 15:59
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Call TextWatcher method

Good afternoon! I'm starting Java studies and I came to this topic. How do I call the insert method on the side of Activity , passing the EditText required field? public static TextWatcher insert(final EditText editText){...
asked by 14.12.2017 / 16:42
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How to improve performance of ajax update? JSF

I'm developing a restaurant system and I have a dataGrid that updates the other. For example: I click on the class and update the product dataGrid. It works, but the result is a bit slow. I'm using a <h:commandLink> with updat...
asked by 14.12.2017 / 18:44
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Problem reloading table

I'm having the following problem, on first run my DefaultTableModel loads normally as can be seen below in red: Aftermakingaregistration,changeordeletiononce,thetableupdatesnormally,butwhenIruntheseoperationsthesecondtimeon,Igetthefollowinge...
asked by 02.01.2018 / 03:46
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ListView displays only 1 item

I'm trying to get the list of friends to appear, but only the first one appears. I'm following a tutorial and my code is identical to what I'm following. public class ListaAmigosActivity extends AppCompatActivity { ListView lsvAmigos; Firebas...
asked by 31.12.2017 / 13:32
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Get a return from a method in another Java class

I have a method in my Spring boot API that receives the data of the user that is logging, checks if it exists and if the password confers. Then return returns a JWT token. I need to get this token return in another Java class. I can not d...
asked by 20.12.2017 / 11:16
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Hibernate Duplicating Records

I'm new to using the Hibernate Framework and so I'm having a hard time resolving an issue. I'm using a relationship between objects as follows: @Entity @Table(name = "PEDIDO") public class Pedido implements Serializable { @Id...
asked by 19.12.2017 / 18:10
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Firebase authentication

I developed an Android + Firebase app (authentication + storage + database). While this tests on Android Studio + authentic smartphone and works perfectly. I published it last Tuesday and after it was in the store I downloaded it to test (as one...
asked by 12.12.2017 / 00:38