I present an error when executing my code from the persistence part which is the following
Exception in thread "AWT-EventQueue-0" javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.2.v20140...
I'm doing the following problem:
Create a record called Point that contains 2 fields: X (Real) and Y
(Real), which represent the coordinates of a point. Create a
Register called Triangle that contains 3 fields of type Point.
I develo...
We are doing tests to learn how to use exceptions.
public class Principal {
public static void main(String[] args) {
int arrayEnterosE[]={1,2,3,0,7};
try{
for (int i = 0; i < arrayEnterosE.length; i++) {
int...
I have a class Alumnos where I declare a Array of three elements:
public class Alumnos extends Persona
{
private int numeroExpediente;
private int nota[];
public Alumnos()
{
numeroExpediente=0;
int not...
What I want is that when there are several selections, each one changes an id, I do not know if I explain it, I want to select an input and if this permission disappears the input will be several select
<!DOCTYPE html>
<html>
<h...
I am doing a task of my DAW course, and I am encountering the following problem:
The exercise asks that 6 values correspond to the daily sales amounts of our business, starting at TUESDAY and finishing at SUNDAY (keep in mind that MONDAY is c...
I would like to know how to add an icon in the ActionBar of my application I have the following XML code
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- "Mark Favorite", should appear as action button if poss...
As some may already know, Oracle has stopped the development of the popular graphical interface library Swing .
I consider javafx as a relatively incipient technology to replace Swing , for which I would like to know other Java li...
I am currently in a project in which I have to perform a web service or an API, but not having much knowledge of these I do not know what to use, the client that will use it has to pass certain parameters and with these Parameters the web servic...