Questions tagged as 'java'

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Convert double to its equivalent in letters JAVA

I need to convert something like 92.10 to its equivalent in ahem letters: Ninety-two with 10 cents. It is to show the value in letters for the amount of an invoice but I do not know how to do it, the functions that I have seen all return wrong v...
asked by 12.06.2018 / 19:58
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Error NDK Android Javac: error: Class names, are only accepted if annotation processing is explicitly requested

I'm learning OpenCV for Android, and according to a tutorial I was watching, I had to configure JNI. I have already configured Java and Ndk in order to make their commands accessible from the command line, from any part of the computer. (Windows...
asked by 12.06.2018 / 22:31
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Auto Increment in number string type (0001 0002 ... java

Hello, I have a problem when generating a consecutive code. My data in the database is of type string , since it is not shown I do not know if the code will be well implemented. DAO Class public String Datosiguiente() { Conne...
asked by 12.06.2018 / 22:42
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I have to solve this and I have many doubts

Create a public class named "Codes01" that only contains the main (...) method and that allows loading the code of a product (Ex .: 124), as you can see in the example, the code The product must be numeric, which is why you should verify that th...
asked by 13.06.2018 / 03:53
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Listview with cursoradapter

Someone would have an example of Listview with cursorAdapter . I have a listview that takes two fields from a Sqlite database, and two buttons in each row. Please, I need help. private void recuperarTodasPersonas() { t...
asked by 12.06.2018 / 16:25
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how to use an update statement in java web?

I'm trying to modify data in a table with the update statement in java web, use a servlet to capture the data and send it to a java class called " adoproducto " with a method called " Modify "that receives two parameters id (type integer...
asked by 12.06.2018 / 16:06
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Problem connecting to mysql in eclipse

When I try to connect to the BD this appears to me, and before it did not appear, according to what I understand change the driver or change the way in which the method is written, but I still can not fully understand what is wrong . This is...
asked by 13.06.2018 / 05:51
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Help to compile standard Genexus classes with Java

Someone knows how I can successfully compile standard genexus classes (Genesus Standard Classes) found in this repository: link I am working on Windows 10, since the build.bat script that comes in the package suggests that it is possible to...
asked by 13.06.2018 / 15:03
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because my app deletes the data of my Tabs - fragment when I move between them?

I have an app that I am developing for a job at my institute where I have to measure different times dynamically at different levels, and I have managed to show the different chronometers in the 5 tabs-fragments that I require, but when the firs...
asked by 11.06.2018 / 02:24
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Null pointer error when modifying status

On a platform jsf I want to modify only the state attribute of a table. For this I have implemented the following method so that everything that had nothing to do with the state remains as it is, without being modified, but, as there are no chan...
asked by 15.06.2018 / 10:21