Java coder to finish off some code by that is already 90% complete – will award large tip for the quick solution turnaround request. The requirements for the program are attached to a document entitled "Requirements" and “Further Details”. The Java code should be built according to the UML Diagram image attached entitled "UML". I have attached an export of the Java package with the classes that are already mostly coded in the “Solution” attachment. The code needs to be added in the Main method to add, delete, and update test animals to the organizer. Refer to the To.java and ToUnitTest.java class in the 'Example' zip folder. The solution should be able to save the animals to a file and open a set from a file similar to the ‘Example’ program. The Java program will be written very similarly to the program that is in the ‘Example’ folder. The program in the ‘Example’ folder has an Interface, but the code will not need an interface. Once the program can add, delete, update animals, write animals to a file and open them from a file along with their life expectancies, please implement the following functionality: Your company wants to sell this product, but most zoos do not have money for software licenses. To address this problem your marketing department is going to give the software away for free, but charge 3 cents each time the life expectancy of an animal is calculated. This will allow zoos to pay a little each year for using the software. It also forces larger zoos to pay more money than smaller zoos. Instructions: Modify the program to track and keep the amount of money the customer owes for the software (ie track the number of times the life expectancy is calculated for an animal and multiply it by 0.03). The software also needs a method to display this total. Your software does NOT need to: Do online billing or billing of any kind Save the running total for the amount owed in the text files that the software saves Lock users out of the life expectancy feature if they don’t pay.