Questions tagged as 'java'

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how to send 44000 data by nodemcu (esp8266)?

My problem is at the time of doing the send the module is restarted. Apparently the buffer is filled with 1460 data it is necessary to find the way to send 44000 The connection I am using is UDP. How can I increase the amount of data I send?...
asked by 14.06.2016 / 18:26
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Implement Undo and Redo in an EditText on Android

As much as I am looking for, the EditText component does not integrate a Undo changes system, I would like to implement a system Undo/Redo ie Deshacer/Rehacer Or do you know a component that derives from EditText o...
asked by 26.06.2016 / 08:18
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UnsupportedOperationException when adding object in a list

I am using a Adapter that extends from RecyclerView.Adapter to show information obtained from a query SQL . When I perform the query at BD I get a List<Inventario> . When entering a Inventario when...
asked by 18.02.2016 / 20:25
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Ksoap sending request in null

I have the following code using the Ksoap2-android-3.6.0 library @Override protected Void doInBackground(String... params) { try { SoapObject request = new SoapObject(NAME_SPACE, METHOD); PropertyInfo prope...
asked by 21.09.2016 / 00:28
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Delete JTexfield and insert another data

Good I want to delete a JTexfield save that data in my variable num1 and insert another to fill the variable num2. These two will go to a method in the operations class that receives those 2 parameters here part of the code JButton btnmulti =...
asked by 10.02.2017 / 06:32
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Replace listeners with RxJava

I am beginning to know the advantages of RxJava, and I would like someone to lend me a hand to get to the point. The issue would be to modify this code made with listeners: public void getData( final OnResponseListener listener ){ if(da...
asked by 07.02.2017 / 17:35
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My Java program does not allow me to enter a menu

The program makes the capture of qualifications and names Get the averages In option 1 when he told me that I do not want another process he does not send me the main menu In option 2 I can not enter a sorting method In option 3, which...
asked by 09.02.2017 / 17:22
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How do I start my java program?

I'm starting in java, and I'm trying to run a program that prints a text. is this: public class Test { public static void main(String[] args) { System.out.println("Yass"); } } But I get this:    C: Users / myuser / Deskto...
asked by 02.11.2018 / 01:17
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StreamCorruptedException when searching for an object in a file

Good, I'm doing an exercise in which I must add some objects to a file using a method and another method to find them using the name given to them. I put the methods and classes: Article Class, this is the Object to insert. public class...
asked by 15.02.2017 / 14:59
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Synchronize phone book with my app

Would someone please help me with what would be the synchronization of mobile contacts with my application? I manage to obtain them through a code, but it turns out that they are repeated, so I see this is given by whatsapp, etc. Because I try o...
asked by 05.11.2018 / 22:49