java - how to add message to toString() in main method -

java - how to add message to toString() in main method -

i have superclass, subclass , implementation class. overrode tostring in subclass, , have array in main method. question if have add together static variable subclass @ end, how should override tostring() in main method.

in super class,

public string tostring(){ homecoming "this message"; }

in subclass,

private static int num; public string tostring(){ homecoming super.tostring()+ "\na message subclass";

}

in main method,

mysubclass myvariable=new mysubclass(); joptionpane.showmessagedialog(null,myvariable + "\nfinal message" + mysubclass.getnum());

this keeps giving me error message. tried,

string message = myvariable + "\nfinal message"; joptionpane.showmessagedialog(null,message);

this didnt work either. should add together final message tostring()?

edit: need specify problem (is compile time error?)

if have superclass tostring , want in kid class append message on kid tostring(), override tostring() , phone call superclass method:

public class kid extends superclass { @override public tostring() { homecoming super.tostring() + " kid message"; } }

now can phone call child.tostring() message

if not problem, please describe clearly.

java tostring superclass