how do you do this piece!!!

[gluttony]

Object Oriented Programming(JAVA)

Implement a class called Birthday that extends the my MyDate class. Include 2 constructors, one with month, day and year parameters and another one with only month and day as parameters. The second constructor will second constructor will call parent constructor passing default value 1970 for the year.

Implement an inner class InvalidDateException that extends the exception class. The message should read “Invalid Date!” include a method called String getZodiacSign() throws invalidate exception that returns the zodiac sigh of the person if it’s valid and throws an exception if not valid.

Use this table
Aquarius Jan 20 – Feb 18
Pisces Feb 19 – Mar 20
Aries Mar 21 – Apr 19
Taurus Apr 20 – May 20
Gemini May 21 – Jun 20
Cancer Jun 21 – Jul 22
Leo Jul 23 – Aug 22
Virgo Aug 23 – Sep 22
Libra Sep 23 – Oct 22
Scorpio Oct 23 – Nov 21
Sagittarius Nov 22 – Dec 21
Capricorn Dec 22 – Jan 19

[nspils]

What do you have so far?