Questions tagged as 'java'

Tagged questions
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Export Tables from a DB to an Excel with one sheet per table

Hello gentlemen, I'm looking for Export the Tables of a DB (No matter the engine, I care that you can) to an Excel with one sheet per table . Example: a single file called gastos.csv that inside contains a sheet for each table that...
asked by 04.05.2017 / 18:13
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Use values of strings.xml

I have this code in the string.xml <?xml version="1.0" encoding="utf-8"?> <resources> <string name="hint_input_user_es">EMAIL:</string> </resources> And what I want is to get "EMAIL" and show i...
asked by 04.05.2017 / 20:10
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Connection to failed firebase

Hello everyone, my problem is that I want to bring data from a firebase database with server java but it does not bring them back, it returns null. This is my https://github.com/Miguel546/firebasemaven code if you can help me please it...
asked by 31.03.2017 / 18:20
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Error httpUrlConnection, bufferedreader or inputStream

I have a asynctask that receives data from a remote file that I access through a java servlet. The fact is that when the task takes a little longer because you have to create the record in the bbdd, when I receive the inputStream w...
asked by 31.03.2017 / 17:01
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how can I add the common values of an ArrayListString in Java?

public class Inicio { public static void main(String[] args) { ArrayList<String> lanzadas = new ArrayList<String>(); int opcion = 0; int totalCara = 0; int totalCruz = 0; Scanner entrada = n...
asked by 20.03.2017 / 04:38
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Toolbar with alpha gradient in Android

How a gradient can be applied to the Toolbar but only when it is extended if it belongs within a CollapsingToolbarLayout . That is, I have a Toolbar that below it an image is displayed, which expands to the Statusbar...
asked by 15.03.2017 / 19:29
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Create PDF form in Java [closed]

I need to create several forms in java, when selecting a person to export their data to a PDF with a form already designed. I know the bookstore 'itext' and 'lowagie' I have already created some PDF to get list, the problem is that now I have to...
asked by 15.03.2017 / 08:47
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Syntax error in Postgresql in java

I have two tables to save detail, save file and I want to create a view of some of the columns of save file, the problem is that I am presented with a syntax error that I can not solve String SQL4 = "INSERT INTO DetalleGuardarFactura (Nombr...
asked by 26.03.2017 / 15:34
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Customize an edittext on android

Is there any way to change the edittext, so that pressing a key specifies the edittext change and show the shape of a fraction for you to enter the numbers? Something similar to what happens in Mathway, or uses something other than an edittex...
asked by 26.03.2017 / 05:00
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Problem when converting objects from a select with Spring MVC

Greetings, I have a page where you must make records of an employee in which an attribute is an object (relationship with another table) and to specify it is done by a select that this time I use the Spring but I get the Next error in validation...
asked by 07.08.2017 / 20:06