Java program: The class diagram with four classes Mammal, Human, Student and Doctor is given. The Mammal class is given as well. Write down the remaining classes as described in the class diagram. The fields and methods for each class is given in the attachment. //in Mammel.java Public interface Mammal{ public double hairColor(): } 1. Class Human: Fields: age(int), weight(double), height(double) Methods: getAge, getWeight, getHeight 2. Class Student: Fields: major (String), gpa (double), creditHours (int) methods: getMajor: returns major, getGpa: returns gpa, getYear: returns freshman, sophmore, junior, senior as determined by earned credit hours Freshman : less than 32 credit hours sophmore: at least 32 but less than 64 credit hours junior: at least 64 credit hours but less than 96 credit hours senior: at least 96 credit hours 3.Class Doctor: Fields: years(int), Speciality (String) methods: getYears: returns years, getSpeciality: returns speciality, getSalary: calculates salary. base salary is 40,000 for the first year and for each additional year gets 5000 more. so in second year doctor gets 45000 and so on. 4. Write another client class. create an object of class Student Called Alex whose major is CS, GPA is 3.4, credit hours is 54, height is 170 cm, weight is 150 pounds and age is 18. create an object of class Doctor called Jack whose speciality is "Dermatology", years is 4, height is 173 cm, weight is 179 pounds and age is 40. print out the students major, gpa, year, and age print out the doctor's speciality, height, weight, and salary.

Question

Java program:

The class diagram with four classes Mammal, Human, Student and Doctor is given. The Mammal class is given as well. Write down the remaining classes as described in the class diagram. The fields and methods for each class is given in the attachment.

//in Mammel.java

Public interface Mammal{

public double hairColor():

}

1. Class Human:

Fields: age(int), weight(double), height(double)
Methods: getAge, getWeight, getHeight

2. Class Student:

Fields: major (String), gpa (double), creditHours (int)
methods: getMajor: returns major, getGpa: returns gpa, getYear: returns freshman, sophmore, junior, senior as determined by earned credit hours
Freshman : less than 32 credit hours
sophmore: at least 32 but less than 64 credit hours
junior: at least 64 credit hours but less than 96 credit hours
senior: at least 96 credit hours

3.Class Doctor:

Fields: years(int), Speciality (String)
methods: getYears: returns years, getSpeciality: returns speciality, getSalary: calculates salary. base salary is 40,000 for the first year and for each additional year gets 5000 more. so in second year doctor gets 45000 and so on.

4. Write another client class.

create an object of class Student
- Called Alex whose major is CS, GPA is 3.4, credit hours is 54, height is 170 cm, weight is 150 pounds and age is 18.
create an object of class Doctor
- called Jack whose speciality is "Dermatology", years is 4, height is 173 cm, weight is 179 pounds and age is 40.
print out the students major, gpa, year, and age
print out the doctor's speciality, height, weight, and salary.