Mystery! line 2 is executing before line 1

Question

This is such a mystery that line 2 is execute before line 1.
please read slowly.
Example! I have a class Payment to make a payment. I could
Call it from 2 classes from class CustomerFrame and from
class AllBalance. and all classes has the customers balance.
now class Payment receives in the constructer. or an object from
class CustomerFrame. or an object from AllBalance.
in order to change the balance from that object.
now after i'm inserting A payment I
have to change the balance from the other classes. so I do A
commit to the database from class Payment. and then I dispose the other
classes and I create A new object from the other classes what I dispose so the is changed.
now please look at this code. Problem with last line of code
//class references
CustomerFrame customerFrame;
AllBalance allBalance;
Object object;
// constructer
public Payments( Object o )
super("Payment");
object = o;
if ( object instanceof AllBalance )
allBalance = (AllBalance) object;
else if ( object instanceof CustomerFrame )
customerFrame = (CustomerFrame) object;
//now after I�m inserting A payment I right
if ( object instanceof CustomerFrame )
customerFrame.dispose();
customerFrame = new CustomerFrame();
//customerFrame.setCustomer(database.findPerson(id));
else if ( object instanceof AllBalance )
allBalance.dispose();
allBalance = new AllBalance( );
Payments.this.toFront();
Now with this last line I have problems. What?
If the �else� statement is execute its ok the Payment frame is on top
but if the �if � statement is execute. Problem! the Payment frame is in back,
but its funny if I put in A JOptionPane.showMessageDialog after the last line from the
�if� statement it works ok;
my god what is he asking?
If you don�t understand my question please give me A code.
That if I change something
from one frame it should change something from the other frame

Answer 1

I can't really understand the question completely, but it sounds to me like the Frame is not coming to the front like it should. The easiest way I have found to make things act sane when a it seems like your swing method isn't doing anything is to actually invoke it through SwingUtilities.invokeLater() ... e.g. for the code you have shown
javax.swing.SwingUtilities.invokeLater(new Runnable() {
   public void run() {
      Payments.this.toFront();
});I don't garuantee that will work but it has seem to help me MANY times when I was extremely perplexed at what was going on. This forces your code to run on the even-dispatch thread (?I think anyways?).
Hope this helps,
Will