Hello friends
given that:
class Person is the super class of both Student and Teacher classes,
*Person person1 = new Student();
Person person2 = new Teacher();
// Do the casting only when the type is verified
if (person2 instanceof Student) {
Student student2 = (Student) person2;
}*
we used the instanceof operator to find out if the object "person2" is an
instance of "Student" class, but it is not, it is a "Teacher" class
instance, and "Student" and "Teacher" are of the same level ( both are
direct children of the class "Person" ).
so considering the information above will the casting be done?? this is what
i want to be sure of, i mean the lessons says that if we cast the person2
object directly it will cause a runtime mismatch exception, so we add the
condition to be sure that person2 is an instance of Student and the
exception won't occur, but that doesn't change that Student is not a super
class of Teacher.
will "person2" be casted to "student2" ?? i don't think so but i need a
confirmation.
thank you all.
--
Abbas Zaini
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