Here what I do is call the class "Application" to create a table, in the error of the "c" it tells me that it has not been initialized, what can I do?
You have to create an instance of that class using the
new command with all its parameters just like you did with
Aplicacion c = new Aplicacion(parámetros);
In fact, you should use
app instead of
c to access the methods of your class since you already have it initialized and in this way you avoid duplicating variables.
You have to initialize your variable, you have declared it and the variable:
Aplicacion is actually a class that has to receive 6 parameters, you can see it in the initialization of
Aplicacion app = new Applicacion( , , , , , );
c you would have to do the same:
Aplicacion c = new Applicacion( , , , , , );
Check your application because you might not need to create another instance of the
Aplicacion class and use the one already created that is