displaying results in text area [NETBEANS java]

[l0ngb1t]

hey,
language: java
platform: netbeans
i am working on a small project that include GUI.
however the tool do 1 repeated task, each time the task is done, it append the result into the textArea, and it goes on until the loop is done

do{
Stuff();
append_the_result();
}while(_somehing)

this code is a function called in the event handler of a button click.
it works fine but my problem is that nothing is displayed until the whole function is done, and not step by step...
anyone know the reason why ?

thanks...

[Lundis]

could you show some code?