Re: Problem initializing objects in GUI

Two suggestions...

1. Create the object where it is declared - e.g.:
SomeClass anObject = new SomeClass();

2. If something more complicated is required, use "lazy initialisation"...
...
SomeClass anObject;
...
public void aMethod() {
   if (anObject == null) {
      anObject = new SomeClass();
      ...
   }
   ...
}



Trabajo wrote:
> 
> I made a program that I want to implement now in a GUI. I've built a GUI
> with the Netbeans GUI Editor. When a certain button is pressed, it must
> create an object. My GUI components are all correct and so is my program
> (no errors) but at runtime I get an exception:
> 
> "Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException"
> 
> This is because I have trouble with the initialization of my objects that
> are not part of the UI. Where do I have to initialize my objects in order
> to use them properly?
> 

-- 
View this message in context: http://www.nabble.com/Problem-initializing-objects-in-GUI-tf3942794.html#a11210874
Sent from the Netbeans - UI mailing list archive at Nabble.com.