1. Write a custom unittest Class that tests a giving si module which has a SimpleInteger class with the following functions: add(a, b) -> returns a + b subtract(a, b) -> returns a - b multiply (a, b) -> returns a b isequal (a, b) > returns True if a == b otherwise False isgreater than (a, b) -> returns True if a > b otherwise False Note: All functions return a None if either a or b are not integers.

Write a C#program that uses a class called ClassRegistration as outlined below: The ClassRegistration class is responsible for keeping track of the student id numbers for students that register for a particular class. Each class has a maximum number of students that it can accommodate.   Responsibilities of the ClassRegistration class: It is responsible for storing the student id numbers for a particular class (in an array of integers) It is responsible for adding new student id numbers to this list (returns boolean) It is responsible for checking if a student id is in the list (returns a boolean) It is responsible for getting a list of all students in the class (returns a string). It is responsible for returning the number of students registered for the class (returns an integer) It is responsible for returning the maximum number of students the class is allowed (returns an integer) It is responsible for returning the name of the class. (returns a string)   ClassRegistration -…

In C++ create a program that acts like a bank account. That has 3 classes. The first class must be a generic class that holds basic info deposit, withdraw, calculate monthly interest rate, and a monthly service fee.The second class must be a savings account class that if the savings account falls below $25 it becomes inactive. The final class must be a checking account if someone withdraws more than what they have a service charge of $15 is added and go into a negative balance.  The output should display the basic information how much someone deposited or withdrew and their monthly interest rate.

javascript Need help defining a function frequencyAnalysis that accepts a string of lower-case letters as a parameter. frequencyAnalysis should return an object containing the amount of times each letter appeared in the string. example  frequencyAnalysis('abca'); // => {a: 2, b: 1, c: 1}