java - How to connect two different classes -


i properties of customer class booking class without using extend because customer property of booking , not extension. how in best way?

public class booking implements serializable{      private string flighttime;     private string flightlocation;     private string flightfee;     private boolean car;     private boolean insurance;     private customer customer;      ... }   public class customer extends person implements serializable {      private string passportid;     private string consultantname;     private string consultantsurname;     private string consulid;      .... }  private void savebookingbuttonactionperformed(java.awt.event.actionevent evt) {     booking customerbooking = new booking();      try {         if (custnametf.gettext().equals("")) {             throw new emptyfield("please insert customer");         } else {             fileoutputstream fos = new fileoutputstream(                                           "bookings/" + custidtf.gettext() + ".txt");             objectoutputstream oos = new objectoutputstream(fos);              customerbooking.setpersonname((custnametf.gettext()));             customerbooking.setpersonsurname((custsurnametf.gettext()));             customerbooking.setpersonid((custidtf.gettext()));             customerbooking.setconsultantname(consnametf.gettext());             customerbooking.setconsultantsurname((conssurnametf.gettext()));             customerbooking.setconsulid(considtf.gettext());             customerbooking.setflightlocation(locationcb.getselecteditem().tostring());             customerbooking.setflighttime(timecb.getselecteditem().tostring());             customerbooking.setflightfee(feecb.getselecteditem().tostring());             customerbooking.setcar(carrb.isselected());             customerbooking.setinsurance(insurancerb.isselected());         }     } }

you did having customer property.

to or set properties of customer using booking class instance, have write

bookinginstance.getcustomer.setsomething(.... bookinginstance.getcustomer.getsomething(....

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