Activity 2: Draw a Object state diagram for a washing machine based on the given specification. [When a washing machine is running it will progress from Washing through Rinsing to Spinning. If there is a power cut, the washing machine will stop running and will go to the Power Off state. Then when the power is restored, the Running state is entered at the History State symbol meaning that it should resume where it last left-off]

Activity 2: Draw a Object state diagram for a washing machine based on the given specification. [When a washing machine is running it will progress from Washing through Rinsing to Spinning. If there is a power cut, the washing machine will stop running and will go to the Power Off state. Then when the power is restored, the Running state is entered at the History State symbol meaning that it should resume where it last left-off]

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Use java programming language 1.1 Create a Student Object project. Create a Student class and use the provided UML diagram to code the instance fields, constructors and methods. Note: The module mark is the average of the participation mark and the examination mark - calculate this using the calcModuleMark() method. The determineStNumber() method should compile a student number with the first 3 letters of the student's name, a '#' symbol, and a 3-digit randomly generated number (make use of a for-loop to concatenate these 3-digits). The stNumber data field should be set in the constructor by calling the determineStNumber() method. The toString() method must compile a string to display the student number, participation mark, examination mark, and module mark, formatted in table format. Student number PMark EMark MMark Mar#9186 81 64 72.00 1.2 Create a testStudents class. Do the following: -Write a static method called display() which receives…
3. Draw a state machine diagram for the Train Ticket Machine object. A train ticket machine is idle when it is not used. When destination is selected, it changes to active state, waiting for money insertion. It will not change state until sufficient money is inserted. When sufficient money, ticket will be ejected and this will bring the course to completed state, and brings the ticket machine to completed state and become idle become idle after the ticket is removed.
Overview: The Observer Design Pattern is a way to design a subsystem that allows many objects to respond automatically to changes of a particular object that's being "observed". Task: Let's say that we have a bank system and this is a main branch (observed class) and there are three branch of bank (concrete class) where is notification supposed to receive by each of those branch notifySubscribers() method. Objectives: • Create a Class UML Diagrams using the Design Patterns showing the Observer Design Pattern. In java code, Create classes and all attributes and methods for the classes.
Your assignment for this course is to implement a beginner level Book Management System (BMS) in Java language. BMS contains 2 classes: Bookand BookList. The Book class has the following attributes: code: a String object, that hold the book’s code. title: a String object, that hold the book’s title. qua: int variable, that hold the number of books with the same code in the library. price: a double variable, that hold the book’s price. The BookList class contains only one data member: ArrayList<Book> t. When running the program display the menu as below:1. Input & add book(s) to the end.2. Display all books.3. Search a book for given code.4. Update the book’s price for given code.5. Find the (first) max price value.6. Sort the list ascendingly by code.7. Remove the book having given code.8. Load data from file.0. Exit.Notes:(1) The book’s code must be unique in the list.(2) Display all books in format (code, title, quantity, price).(5)…
Design and implement an object-oriented program for displaying a deck of cards. Each card will have a value ranging in order from 1 for an ace, 2 for a two, and so on up to and including 11 for a jack, 12 for a queen, and 13 for the king. The focus of the exercise is to create three classes that represent a card, deck, and hand using composition.
Project Description: We will program the gesture selection component of a relational agent. The set of actions will be: 1. Smile 2. Frown 3. Nod 4. Blink Percepts will be a user's communication to the program, consisting of two elements: 1. content (Positive, Negative, Unsure) 2. mood (Happy, Sad, Neutral) The output is a gesture that the relational agent should perform when responding. The agent's gesture selection strategy is defined as: • If happy and either positive or negative, smile • If happy and unsure, nod • If sad, frown • If neutral and positive or negative, nod • If neutral and unsure, blink Your Task: Implement a production-rule driven relational agent with the behavior as above. Input will be a file of 2-element Python tuples, one per line. Your top-level function should be called gestures(path)-the path argument being a path to the input file, suitable as an argument to open.
The world of shapes is much richer than the shapes included in the inheritance hierarchy of Fig. 11.3. Write down all the shapes you can think of—both two-dimensional and three-dimensional—and form them into a more complete Shape hierarchy with as many levels as possible. Your hierarchy should have the base-class Shape from which class TwoDimensionalShape and class ThreeDimensionalShape are derived. [Note: You do not need to write any code for this exercise.] We’ll use this hierarchy in the exercises to process a set of distinct shapes as objects of base-class Shape .
The cognitive walkthrough is a formalized way of imagining people’s thoughts and actions when they use an interface for the f‌irst time. During a cognitive walkthrough the evaluator needs to ask four questions as below Is the effect of the action the same as the user’s goal at that point? Will users see that the action is available? iii. Once users have found the correct action, will they know it is the one they need? After the action is taken, will users understand the feedback they get? Given below is an action sequence for creating a customized voicemail message on an iPhone. Tap Voicemail. Tap Greeting. Tap Custom. ‘ Tap Record and speak your greeting. When you f‌inish, tap Stop. To listen to your greeting, tap Play. To re-record, repeat steps 4 and 5. Tap Save. Imagine an iPhone interface and create a report of the cognitive walkthrough for the above mentioned task in context with the review questions.
Design and implement a class called Bug, which represents a bug moving along a horizontal wire. The bug can only move for one unit of distance at a time, in the direction it is facing. The bug can also turn to reverse direction. For your design, create a UML Class diagram similar to that on the attachment. Note that you need to include the constructor in the methods section if you code a constructor. Bug will require a toString method to return the current position and which direction the bug is facing to the driver so it can be output. Hint: Remember that a horizontal line has a zero position in the middle with positive to the right and negative to the left. Consider that a bug will land on the wire at some point before starting along the wire. Write an interactive test driver that instantiates a Bug, then allows the user to manipulate it with simple commands like Output (to see the position and direction), Move, Turn, Exit ... single letters work just fine. All output…
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.
Design and implement a class called Bug, which represents a bug moving along a horizontal wire. The bug can only move for one unit of distance at a time, in the direction it is facing. The bug can also turn to reverse direction. For your design, create a UML Class diagram . Note that you need to include the constructor in the methods section if you code a constructor. Bug will require a toString method to return the current position and which direction the bug is facing to the driver so it can be output Write an interactive test driver that instantiates a Bug, then allows the user to manipulate it with simple commands like Output (to see the position and direction), Move, Turn, Exit ... single letters work just fine. All output should be via the driver not methods within Bug. You should use this driver to create screenshot exhibits for a number of scenarios (e.g., output original position, move a few times, output, move a few more times, output, turn, output, move, output, etc.).…
Create a java UML class diagram for an address book. The contacts in the address book should contain name, address, and phone number. Also, all of the contacts are stored alphabetically so if i turn to the "D" page of the book it will show me contacts that start with the letter D. Contacts can also be personal or business. I do not want code it is a UML diagram.