It is intended to develop a software for an electronic product sales shop named ABC. A problem encountered in the software is: • There are electronic devices registered in the system and instant discounts are made for these products by the store. There are Dealers and Customers registered to the store. These dealers and customers follow the products they want. If the price of a product changes, it is required to notify the dealers and customers who follow the product. According to this: a) Write the name of the most appropriate Design Pattern.   b) Draw the appropriate UML class diagram for the problem using the selected design pattern. Do not forget to define the methods to be used in the classes.

1.Problem Description    Student information management system is used to input, display student information records. The GUI interface for inputing ia designed as follows : The top part are the student imformation used to input student information,and the bottom part are four buttonns, each button meaning : (2)  Total : add java score and C++ score ,and display the result; (3)  Save:  save student record into file named student.dat; (4)  Clear : set all fields on GUI to empty string; (5)  Close : close the window of GUI

StrathSoft, a software development company, was approached by EatWell chain of restaurants to commission a tailor-made software to automate their restaurant sales. The sales manager of EatWell chain of restaurants described their current manual process of salesas follows: “We sell many food items, each item is identified by an identification code and each food item has a name and price. We use a variety of ingredients in our food items. Each ingredient hasa unique ID, name, production date and expiry date. One ingredient can be used in many food items. We have many customers. Customers have a name, a unique ID, address and contact. When customers place orders, they buy one or many food Items. Each order has a unique ID,order date and total” 1. As a system designer for StrathSoft, design a class diagram for the above descriptionof the part of the prospective system.  2. Develop the part of the system that will allow you to create items made of a list ofingredients. Use a driver class to…

A small consulting company ECN have decided to hire you. When you go to the office of the human resources to complete new employee’s paperwork, you are presented with two salary offers and told that, before you start working, you must decide which one offers you would accept. After looking at the two salary offers, you decide to write a program to help you make the best choice. The two salary offers are: Salary 1: Salary of $117.23 per day for 10 days. Salary 2: Calculated as follows: first day:  $1.15, second day: $2.30, third day: $4.60, and so on, with the amount doubling each day up to the 10th day. Part A: Perform a mathematical hands-on calculations first that shows the values for salary 1 and salary 2 respectively for the ten days.  Part B: Now, write a program with the following requirements:. A main function to hold the inputs, outputs, and pass them if and where needed A function to calculate salary 1 and pass the total to another function called “comparison” A function to…