Teacher class

This class extends the Person class. It also has an additional instance variable and its accessor method: String specialty and public String getSpecialty$().$

public Teacher $($Date born, Name name, String specialty$)$: this constructor throws IllegalPersonException exceptions if born or name is null. Also, it throws an IllegalPersonException exception if specialty is blank $($note: null is ok$).$

COMP$2601$ Assignment $1$ of $2$ Due Before Lesson $9$

$5$

This class overrides the public String toString$()$ method, which returns a String in one of these two exact formats:

a$)$ Alive people example: "Tiger Woods $($specialty: mathematics$)$ was born $1975-12-30$ and is still alive"

b$)$ Dead people example: "Albert Einstein $($specialty: mathematics$)$ was born $1879-03-14$ and died $1955-04-18"$

Use the parent's getName$()$ return value, then its getPrettyName$()$ method, and the born$/$died getYyyyMmDd$()$ method.