what is the more appropriate & related methods that I can add it for each object table in the diagram.

I'm using power designer application , my system is about Student Advisory Council System.

Election Voting + EVID : int + MemID :int + Total Voting : double + EV Date : java.util.Date Budget + Bud ID :int + Bud_Date : java.util.Date + Bud_Reason : java.lang.String + Bud_Amount : double + Bud_BillScanib :int + Bud_Transaction : java.lang. String Bud_Received java.lang. String + Balance : double + ScannedReceipt java.lang. Object Member + Mem ID Mem_Position java.lang. String Mem Duration : java.lang.String + Mem_Name java.lang. String + Mem_Email java.lang. String + Mem_PhotoID : int Login + Log ID :int + Log Email : java.lang. String + Log_Password: java.lang. String Activity + Act ID : int + Act_Name : java.lang. String + Act_Place : java.lang. String + Act_Time : java.util.Date + Act_Officer : java.lang. String + SID : int Stuffinformation + St ID : : int + St_FName : java.lang. String + St_SName : java.lang.String + St_Address java.lang. String + St_Qualification : java.lang. String + St_Position : java.lang.String + St_Departement : java.lang. String + St_Email : java.lang. String + St_PhoneNo : double + Login :int Student + SID :int + S_FName : java.lang. String + S_LName : java.lang. String + S_GPA : double + S_StateOfStudent : java.lang. String + S_Address java.lang. String + S_Department : java.lang. String + S_Email : java.lang. String + S_PhoneNum : double S_PerentPhoneNum : double + LogID :int + EvID :int + S_Program : java.lang. String + S_Major : java.lang. String - Voting Status boolean