Java program class Hospital { String name; Hospital(String name) { this.name=name;//name:Apollo hospital } } //————————- class Doctor { String doctorname;//attributes Doctor(String doctorname)//constructor { this.doctorname=doctorname;//doctorname=Dr.kelwin } void worksIn(Hospital a)//a=apollo { System.out.println(doctorname+” working in “+a.name); } } class Association { public static void main(String args[]) { Hospital apollo=new Hospital(“Apollo hospital”);   Doctor d1=new Doctor(“Dr.kelwin”);   d1.worksIn(apollo); } […]

Final variables==> final variables means constant–>once assigned,its value cannot be changed   class Finalvariables { final int speedlimit=60;   void display() { //speedlimit=70;//error System.out.println(“speed limit=” +speedlimit); } public static void main(String args[]) { Finalvariables object=new Finalvariables(); object.display(); }}