7. Write a Java Program to implement the bank operation using Multiple Inheritance (Bank Interface, Customer & Account classes). a) Crete an Interface Bank having data members like rate of interest, no of years and use method show () b) Crete a class Customer with the data members customer name, customer_id and method display() c) Create another class Account having data members account_no, account balance and method interest () which Extends the Customer class and implemented Bank interface. Write the tester class with the name Account details. Pass the Customer Name, ID, Account Number and Balance through main method. Display the Rate of interest for 3 years @ 12% and display the output as given below Customer Name XYZ Customer Id=12345678 Account No. 9876543 Account Balance 5000.0 Interest 1800.0

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…

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Create a Java program demostrating the following aspects of OOP: You must create an UML. class diagram for all the classes and interfaces in the program. Use Java interface and method overriding appropriately. Inheritance/Interface and polymorphism. Your program the base class of interface should be used as the variable/parameter type to demostrate polymorphism. Overloading using either methods or constructors. Appropriate use of this keyword. Correct use of access modifiers (public, private) in an appropriate way. Correct use of static variable and instance variable. Passing object as parameter to a method. Caling method from another method of the same class. Creating user defined classes with Encapsulation principle consideration.   You are free to pick any topic/system to accomodate the above points but please keep it simple. The application does not have to be real world application meaning you can use an imaginary system for the mentioned points. Neverthless, you should be aware…