Need help for my project(how to call function in ancestor object)

Question

dear all, i need your help for my project.My problem is stated as follow:
say i have a class call frameA and frameB, both of them are extend from
JFrame, frameA structure can be described briefly as follow:
//frameA.java
public class frameA extends JFrame{
private frameB fb;
public frameA()
fb=new frameb();
show();
public void func()
JOptionPane.showMessageDialog(null,"OK");
now, my problem raised, after frameA and fb is created, how can i access the ancestor object(which is frameA) within fb's code,
what should i add inside frameB? i need the answer urgently......
thanx a lot!!!
cheers

Answer 1

Hi,
For this kind of problem, I believe you can use the inner class.
Here's the sample code I hope will help:
class MyApp{ 
B bFrame;
A aFrame;
class A extends JFrame{
public void doSomething(){
bFrame = new B();
bFrame.doSomething();
class B extends JFrame{
public void doSomething(){
aFrame = new A();
aFrame.doSomething();
If you have further question, you can email me your task sample code at [email protected] and I will solve it for you.
With my best,
Zike Huang(Jim)