Questions tagged as 'java'

Tagged questions
0
answers

How can I install the HAXM?

I have tried everything but it does not let me install it in the eclipse. Has this happened to you?     
asked by 24.09.2018 / 08:00
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How to put the next and previous song in Android Studio?

Hi, I'm doing a music player in android studio and I would like to know how I can move to the next song by clicking on the Next button, the same thing in the case when I go back I'm doing it with a listview and when I click on a song this is...
asked by 01.10.2018 / 16:50
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Auxiliary RDDs within function map

I'm new to Apache Spark. I have a query regarding RDDs and transformations. I have a PairRDD with data loaded already. And now what I need, is: through a transformation (maptoPair), so that I can get another pairRDD, the tuple that meets a certa...
asked by 19.09.2018 / 22:34
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Send web form in java

My code is as follows: WebClient client = new WebClient(); client.getOptions().setCssEnabled(false); client.getOptions().setJavaScriptEnabled(true); client.getOptions().setThrowExceptionOnScriptError(false); HtmlPage page = cl...
asked by 19.09.2018 / 08:01
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Export file that is saved in the library

I have the following code. File carpetaFmill = new File("C:\FolderMill"); File arch = new File("C:\FolderMill\arch.bat"); if (!arch.exists()) { Resource res = new Resource(); try { if (!carpetaFmill.exists()) { carp...
asked by 19.09.2018 / 10:26
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Differences between x ++ and ++ x

In the code I see many times x++ in loops, but sometimes I find ++x . Is there any difference between these two expressions?     
asked by 03.12.2015 / 17:04
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Get data from USSD

I am trying to obtain data from a popup window of the USSD protocol, since my application, I can call the code in this almost * 144 # without any problem, but nevertheless, I have dealt with imnumerable codes found on the internet without obtain...
asked by 25.09.2018 / 02:58
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Write to CSV file from java

I have doubts about how to write to a CSV file from JAVA I know how to read it, but I have doubts about how to write and what is left by columns So I'm declaring them, now I want the user to enter them and save them in the File. (I do not...
asked by 18.09.2018 / 20:58
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Help with a Java program, NetBeans

I have a program that is an ATM.  It gives you the options to withdraw, pay, check balance and no procedure. Every time an operation ends, it returns to the Menu, of course I used an < > I did that at the beginning it will ask the name...
asked by 18.09.2018 / 22:33
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Check the last three data stored in Firebase with Android

Good morning, I am making a query to the last three data saved to be compared si el ultimo es menor que el segundo y primer dato guardado entonces realizar accion. I have the data saved as follows the data in red are the doses that I...
asked by 03.10.2018 / 16:09