When the constructor of a class is called? Select one or more: a. When creating an instance of the class b. When creating an object c. When implementing the class (.e. coding the class) d. When defining the class (i.e. writing the UML diagram) What are the elements of the interface of a method? Select one or more: a. list of methods called by the method b. Implementation c. name d. return data type e. input parameters f. GUI In the following class diagram, which functionality is missing? DataBaseReader +open:void +close:void +goToFirst:void +goToLast:void +howMany Records:int +are ThereMore Records:boolean +position Record:void +getRecord:String +getNextRecord:String Select one or more: a. Retrieve a record from the database a b. Add a record to the database c. Position the cursor in the first record d. Calculate the number of records in the database The concept of method overloading can only be applied to the constructors of a class Select one: True False