Questions tagged as 'java'

Tagged questions
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Error opening a SQLite database

Here I have this code: encuestadoSQLiteHelper encuestado = new encuestadoSQLiteHelper(this, "DBEncuestado", null, 1); final SQLiteDatabase db = encuestado.getWritableDatabase(); String nombre = "...
asked by 06.03.2017 / 13:28
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Implement RecycleView

Good people, I am trying to implement a recycleView, the thing is this, I have several layouts, which have many fields (editText, textView, etc). Since there are so many fields I can not load them all of one but it is very overloaded, I need a w...
asked by 06.03.2017 / 14:49
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How to perform operations within a file and write the result to another output file?

Good morning, I am having some problems in a Java exercise that I had in my class. What I need to do is in a .txt input file put any content either words or numbers but at the time of having an operation, the result should be shown in an output...
asked by 12.03.2017 / 23:45
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problem when downloading excel generated from java

I have a web application created in java I use the Apache library poi to generate an excel of a query, when I run the application from the netbens the excel file is perfectly generated, but when I deploy the war in the tomcat apache to execute i...
asked by 08.03.2017 / 05:46
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How can I parse an XML String?

I am doing an application on Android, my error is as follows, from the Application, I send a parameter to a query, from a php, within this php, when it makes the query, it generates a response in a way structuring an XML. (I enclose the php so y...
asked by 19.04.2017 / 17:17
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Android Studio Modify graphic part of the xml, from java code [closed]

I hope to explain well what I want to achieve: I'm from java code, defining buttons, TextView etc. but I'm having problems defining its properties, specifically for example: to a button, give property of padding, margin etc. I would like to a...
asked by 09.03.2017 / 19:14
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Can you have XAMPP and Tomcat EE installed at the same time?

I have windows 10, XAMPP, Java and Netbeans installed on my PC. I'm trying to create a website for e-commerce by following the "official" tutorial on the Netbearns.org site: https://netbeans.org/kb/docs/javaee/ecommerce/entity-session.html...
asked by 21.03.2017 / 21:58
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How to use google translate api or similar for free?

I'm trying to do an exercise for class. It is a translator with JFrame windows. The fact is that I try to use the Google Translate API and it seems to be paid. The error that shows me is the following:    [google-api-translate-java] Error ret...
asked by 21.03.2017 / 17:47
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How to obtain entities and their relationships using Hibernate?

I am working with Spring 4 and Hibernate 5. I am doing a test application to manage the events of a fictional theater, and also keep information about those events. I have several classes annotated with @Entity, such as Theater, User, Seat, Room...
asked by 22.03.2017 / 14:47
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Exporar ArrayList from one activity to another

I have an ArrayList called "answers" in an activity. And I want that, when in an activity where a survey is created, a certain question is answered, add the answer, which is in string, to the array "answers". But I can not because the array is n...
asked by 06.03.2017 / 20:43