Answer the following questions about the given statement: ∀t : Trainer • ∃c : course • (t,c) ∈ Teaches •What does this statement mean? •Is this statement a set or a predicate? •What does the statement evaluate to based on the current system state?
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Answer the following questions about the given statement:
∀t : Trainer • ∃c : course • (t,c) ∈ Teaches
•What does this statement mean?
•Is this statement a set or a predicate?
•What does the statement evaluate to based on the current system state?
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- Question 4 For this question, let's combine ADTS and dictionaries! Let's try to make an ADT that represents a politician. The politician ADT has a constructor make_politician. There are three selectors, get_name, get_party, and get_age. When implementing an ADT, you have the freedom to choose how you want to represent it. Some common data structures used to represent ADTs are lists and dictionaries. The city ADT was implemented using a list. Now, let's use dictionaries to implement our politician ADT. You must use a dictionary for this question, or else you will not pass the tests.SO B N SO RS N Ny M S R T e Problem You want an instance to delegate attribute access to an internally held instance possibly as an alternative to inheritance or in order to implement a proxy.Synthesize the domain model of vending machine which has the following characteristics. Products can be purchased by inserting the correct number of coins into the machine. A user selects a product from a list of available products, adds coins, and either gets the product or gets the coins returned if insufficient money was supplied or if the product is sold out. Products can be restocked and money removed by an operator. Requirements for this system: Product Selection: Users will be able to choose a product from a list of available items. The system must display the product list with corresponding prices. Coin Insertion: Users can insert coins into the machine to pay for selected products. The machine will accept common denominations. Purchase Process: Upon sufficient coin insertion, the selected product will be dispensed. If the inserted coins are insufficient, the machine should return the coins. In case of a sold-out product, the machine will return coins. Restocking: Operators…
- Airline Company An airline company is interested in implementing a database system to manipulate the flights thatit organizes.The airline company has a certain number of airplanes. Each airplane has a unique code, anumber of seats and a production year. An airplane belongs to a certain airplane model. Eachmodel has a unique model number and is provided by a certain company. We have differentairplanes of each model. Each flight is identified by a flight number, a scheduled departure timeand a scheduled arrival time. We want also to keep track of the airport from which the flight isscheduled as well as the destination airport. Each airport is identified by a unique code, its nameand the country in which it is located. Journeys of each flight are organized on a daily basis.Each journey is identified by a date, its actual departure time, its actual arrival time, and thenumber of passengers, in addition to the airplane that performs the journey. We want to keeptrack of the seats occupied,…Suppose you are required to design a rental car system for a shop in which different cars are given to different customers on specified rent in daily basis. You have to keep the records of customers and cars. Now the shop has multiple cars and customers. The customers have two types one is member and the other is new customer. The customers have some operations as add customer which add the details of the customer in the system, view customer which prints the details of the customer and is valid which checks whether the NIC is given or not. The internal details of is valid operation only is kept hidden with the help of abstraction. The details of customers are name, contact, NIC, address and balance. The car has four types Honda, Toyota, Suzuki and Daihatsu. The common operations of car are add car which add the details of car in the system, view car which prints the details of the car, issue car which updates the car detail (available = false) that car is given on rent and is…Assignment Apex: Apply SOQL on Contact to get the Contacts for Account those we got from 1st SOQL: Add a new method: Name: getContactInformationForSpecificAccount Return Type: Map> args: List
- Create an Ordered Doubly Linked List in C++. Remember that an ordered Linked List is one where inserts automatically place a new node so that all the nodes retain a certain order. This list should be templated where items should be in "ascending" order (i.e., if it is a list of numbers, it should be of order of least to greatest).Design a customer care class for AIRTEL. Hava sufficient variables and operations maintain the log data for the customers those who call airtel. Maintain the log data of the objects as an entry in the Linked List of a collection. Maintain necessary functions supported by linked list collection class. Make use of comparator interface to order the objects. java code + output of screenshotDescribe the difference between deep and shallow binding of referencing environments.
- A User class has an association link to a Service class, and calls its compute() method to do mathematical calculations. Because the computation takes time, it is better to first prompt a waiting message, which was not yet provided, to inform the user. However, the Service class is also used by other internal classes that do not need the message. Therefore, your job is to come out a way to provide the message without modifying the association relationship and the code of the Service class. What design pattern is a useful choice? Also,Show the new design in UML class diagram. Extra interfaces or classes can be added.Airline Company An airline company is interested in implementing a database system to manipulate the flights that it organizes. The airline company has a certain number of airplanes. Each airplane has a unique code, a number of seats and a production year. An airplane belongs to a certain airplane model. Each model has a unique model number and is provided by a certain company. We have different airplanes of each model. Each flight is identified by a flight number, a scheduled departure time and a scheduled arrival time. We want also to keep track of the airport from which the flight is scheduled as well as the destination airport. Each airport is identified by a unique code, its name and the country in which it is located. Journeys of each flight are organized on a daily basis. Each journey is identified by a date, its actual departure time, its actual arrival time, and the number of passengers, in addition to the airplane that performs the journey. We want to keep track of the…Customers are charged a simple interest per annum on any approved loan. Assuming every loan applied for is approved, develop an interface that will help the company to keep records of their loan applicants in a database. Remember, only registered customers of the company can access loans.Simple Interest (SI) = (Principal (P) * Rate(R) * Time (T)) / 100.The Principal, Rate and Time should be entered.iv.Create an interface for retrieving the loan records of a client showing the basic records of theclient as well as the loan records of the client.