সম্পাদনা
abstract interface class Name { String name(); } abstract interface class Land { String land(); } class Author implements Name, Land { @override String name() { return "আরিফ"; } @override String land() { return "বাংলাদেশ"; } } void main() { Author user = Author(); print(user.name()); print(user.land()); }
পূর্বরূপ
