Questions tagged as 'java'

Tagged questions
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Display values of SQLite table fields in the Console

I'm using the following code snippet to return the values of the fields in a DB in the Android Studio console: db.execSQL("CREATE TABLE IF NOT EXISTS pessoas(id INTEGER PRIMARY KEY AUTOINCREMENT, nome VARCHAR, idade INT(3))"); Cursor curs...
asked by 11.12.2016 / 18:40
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Error android.database.sqlite.SQLiteException

This method of my activity: private void loginEmailSenha() { editTextEmailLogin.setError(null); editTextSenhaLogin.setError(null); controllerUsuario = new ControllerUsuario(this); String email = editTextEmailL...
asked by 23.10.2015 / 01:28
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NullPointer Exception during registration using the MVC standard

I have a ready-made application that was created procedurally, but for learning purposes I decided to reprogram it using object orientation and the MVC pattern. While registering for a publisher, I'm getting the error NullPointerException...
asked by 25.10.2015 / 02:22
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Error running Java program - Mapping Servlet Web.xml

I have the following software, it should allow me to pass a file, it will issue a message in the console just to positively access a class and list the result on the page, I'm starting and I do not know the reason for the following error: Th...
asked by 28.10.2015 / 23:42
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JPQL Query - SQL

Good evening. I have a bean, which has an init () method. One of the goals of this init is to bring the cycle that was opened according to the course of that user, ie If there is no cycle or evaluation process involved with the course of that...
asked by 31.10.2015 / 03:27
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Progress bar Not working

People I have two threads, one that accesses the webview with the url and another responsible for progressbar, but the progress bar is not running. What can it be and how to fix it? import android.os.SystemClock; import android.support.v7.app....
asked by 27.10.2015 / 21:15
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Android - Mobile alarm according to system time

Hello. I've done a lot of research and I've learned to do some cool things with AlarmManager and the like. I wanted to make an alarm clock for my cell phone for tests, the problem is that all the codes and tutorials that I find is to wake up...
asked by 16.10.2015 / 22:35
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SQLException: IN or OUT parameter missing from index :: 10

First time I'm working with connections, we're doing a college job for a social network, now we're doing the insert method. My question, when I run the test class, does it return an error. What causes this error? Note: we can not use any k...
asked by 16.10.2015 / 13:41
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Java / Selenium - Save text in variable [closed]

People, all right? I have the following problem: I need to generate a fake cpf, copy the generated cpf, and store it in a variable. But I can not extract the generated cpf from the sites I found. Both gettext () and getattribute () could n...
asked by 15.10.2015 / 21:18
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ImageView Error can not be converted to Byte []

I'm putting together an application that you want to save the image to in SQLITE Bank. I am not able to proceed because the following error occurs ImageView cannot be converted to Byte[] I ask to be the most specific given my inexperience...
asked by 23.01.2016 / 21:38