i need code and .java file as well programming language is java

Question 2: (10) Define an interface named Geometric Shape with a single method named areal that calculates the area of the geometric shape: Implement the Geometric Shape interface for Rectangle, Circle and Triangle class. Implement a class Calculate Areas that has a function that takes Geometricshape type array of objects and builds an array of (double values) values for each corresponding shapes. Question 3: (10) Imagine a publishing company that markets both book and audiocassette versions of its work. Create a class publication that stores the title (a string) and price(type float) of a publication. From this class derive 2 classes: book, which adds a page count (type int); and tape, which adds a playing time in minutes (type float). Each of theses 3 classes should have a getdata() method to get its data from the user at the keyboard, and a putdata() function to display its data. Suppose you want to add the date of publication for both books and tapes. From the publication class, derive a new class called publication2 that includes this data member. Then change book and tape so ther are derived from publication2 instead of publication. Make all the necessary changes in member functions so the user can input and output dates along with the other data. For the dates, you can use the bulit-in date function which stores a date as 3 ints, for months, day and year. Write a main() function to test the book and tape classes by creating instances of them, asking the user to fill in data with getdata(), and then displaying the data with putdata(). Draw also a UML Diagram