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- COVID TRACING DATABASE Assumptions: You can make the following assumptions in this project. The database stores information about houses, each with a house ID, address, and zip code. The database stores information about person, including person ID, house ID where the person lives, person name, phone number, and status where 1 means currently tested positive (i.e., the most recent test result is positive), 0 means currently tested negative (i.e., the most recent test result is negative), and null (no test so far so status is unknown). The database stores information about a person's all past tests, including person ID, test date, and result (1 means positive and 0 negative). The database stores information about events (could be gathering, party, etc.). Each event has an event ID, event name, date, and address. The database stores information about a person participated in an event. The database stores information about flights, including flight ID, flight date, flight number (a…Class field corruption must be prevented.JAVA PROGRAMMING OBJECT-ORIENTED PROGRAMMING Create a model of a setting of your choosing by applying the composite pattern. It may be a scene from a photograph, or it could be from a simulator, or it could be from a movie, or it could be from a videogame, etc.
- Below is my RolePermission Model:@Entity@Getter@Setterpublic class RolePermission {@Id@GeneratedValue(strategy = GenerationType.SEQUENCE,generator = "Id")// @Column(name = "id", nullable = false)private Long id;//@ManyToOne(fetch = FetchType.LAZY,cascade = CascadeType.REMOVE)// @ManyToOne@JoinColumn(name = "roleId")@JsonIgnoreRole role;@ManyToOne(fetch = FetchType.LAZY,cascade = CascadeType.REMOVE)// @ManyToOne@JoinColumn(name = "permissionId")// @JoinColumn(name = "permissionId", referencedColumnName = "permission",// insertable = false,updatable = false)@LazyToOne(LazyToOneOption.NO_PROXY)@JsonIgnorePermission permission;@CreatedDate@CreationTimestamp@DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)LocalDateTime createdAt;@LastModifiedDate@UpdateTimestamp@DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)LocalDateTime updatedAt;}Things can be documented at the Object Criented approach by: O a. Class diagram O b. Data stores O c. Use case diagram O d. ERDStep1-Study the scenario below and create a Java Program for Builders Warehouse, The program must consist of a class called Materials to handle the details of the materials. The program should read the materials details from the material.txt file then use a LinkedList to store the material details. Then finally the products stored in the LinkedList must be displayed like the sample code below step 2-There must be clear code and a screenshot of the code running.
- Task 1: Planning and Passengers For this task we will be creating an overview of the classes in our system using the Unified Modeling Language (UML) Class Diagram. IMPORTANT: When submitting this question, you must submit it as a Portable Network Graphics (PNG) file. Below is a list of tools for drawing UML diagrams, but you are free to use any program of your choosing: . Google Drawings (https://docs.google.com/drawings/) . Plant UML (https://plantuml.com/) • Inkscape (https://inkscape.org/) • Visual Paradigm (https://online.visual-paradigm.com/) You may use any tool you wish as long as your diagram follows the UML conventions and is in the correct format (PNG). Instructions IMPORTANT: Unless otherwise stated, all attributes should be private or protected. You may decide for yourself whether an attribute should be private or protected. Draw the UML class diagrams for the following classes: 1. An abstract Java class called Person that has the following attributes: a String called…Select the class relationship that best describes the following scenario: Class A can has a method that has no parameters. This method modifies an attribute of itself. Association (Reflexive) Association (Bidirectional) Association (Directed A to B) Association (Directed B to A) Composition (A as the whole and B as the part) Composition (B as the whole and A as the part) Aggregation (A as the whole and B as the part) Aggregation (B as the whole and A as the part) O Inheritance None of the givenUsing C++ create a class Parent with Name & CNIC number as a private data members. Create a getinput & showinput functions & set values through getter & setters. Create another class Student with section as private data member & examscore as a protected data members. Class Student is a relationship with class Parent. Create a getdata & displaydata functions & set values through getter & setters. Create a third class Resultcard with remarksbyteacher as a private data members. Create a function getgrade which calculate the grade of students according to their marks and then display the report card of student. Class Resultcard is a relation with class Student.
- Encapsulation in Java Implement getters and setters for the class in the code editor. Ask the user input for each attribute and use the setters to set the attributes. Inputs 1. Game Name 2. Year Published 3. Game Publisher Sample Output Enter game name: Genshin Impact Enter year published: 2020 Enter game publisher: Hoyoverse Genshin Impact is published on 2020 by Hoyoverse.Wire is used in the following applications. For each application, prepare a list of wire characteristics that are relevant, (1) create class diagrams with attributes (2) create associate objects with values for each class. Use the following wire applications: Each wire application should have a separate diagram layout. a. Selecting wire for a transatlantic cable b. Designing the electrical system for an airplane c. Hanging a bird feeder from a tree d. Designing a piano e. Designing the filament for a light bulbTrue or False? A composition association relationship connects a Student class with a Schedule class, which means that if you remove the student, the schedule is also removed.