Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.
The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:
Registered: 14 years ago
Here is the answer from the lecturers:
The option that is partially correct is 4 but as you said it is not completely correct. The hashCode() method returns the hashcode of the object which is the object's memory address in hexadecimal .Refer to http://java.sun.com/docs/books/tutorial/java/IandI/objectclass.html
You can ignore this question.