class Teacher { String designation = "Teacher"; String collegeName = "aimtocode"; void does(){ System.out.println("Teaching"); } } public class PhysicsTeacher extends Teacher{ String mainSubject = "Java"; public static void main(String args[]){ PhysicsTeacher obj = new PhysicsTeacher(); System.out.println(obj.collegeName); System.out.println(obj.designation); System.out.println(obj.mainSubject); obj.does(); } }