Simple OOP Problem. Help!

Question

This is just a simple OOP problem that i cant decide on a best
implementation for.
im passing an object to an instance of, 'TabbedFrame', which is just
a frame with a Tabbed Pane in it that is holding custom panels.
however, these custom panels need access to the object being
passed to 'TabbedFrame' and to some methods in it.
i cant make them static however so how do i gain access to them?
is my only option to pass the 'TabbedFrame' to each panel?
like - jtabbedpane.add( "Panel 1", new mypanel1(this));
here is code:
new TabbedFrame( DataObject );
public class TabbedFrame{
public TabbedFrame(DataObject do){
this.do = do;
jtabbedpane.add( "Panel 1", new mypanel1() );
DataObject do;
public class mypanel1{
public mypanel1(){
// need access to DataObject of the 'TabbedFrame' object that instantiated
// this 'mypanel1' and to some of its methods
}i would just pass the DataObject to evey panel (there are 12) but
i also need to be able to call methods in the 'TabbedFrame'.
Any help would be appreciated!

Answer 1

Modify mypanel1's constructor:
public class mypanel1{
TabbedFrame tf;
public mypanel1(TabbedFrame tf){
this.tf = tf;
// need access to DataObject of the 'TabbedFrame' object that instantiated
// this 'mypanel1' and to some of its methods
DataObject theDo = tf.getDataObject();
tf.someMethod(); // Call method on the TabbedFrame
}In TabbedFrame:
public TabbedFrame(DataObject do){
this.do = do;
// Modify call to constructor to pass "this" TabbedFrame.
jtabbedpane.add( "Panel 1", new mypanel1(this) );
}