Analysis: Q1: There are common attributes and methods between passengers and drivers. What is the best choice for designing and writing the codes of these two classes? Explain your answer. Q2: Draw a simple class diagram showing only relationships between the classes. Implementation: After analysing the given requirements, implement the required application: with Object Oriented Programming style following the rules of good programming style (e.g. adding comments, etc.) • using only the material covered in M251 (and its prerequisites) Java language*

Analysis: Q1: There are common attributes and methods between passengers and drivers. What is the best choice for designing and writing the codes of these two classes? Explain your answer. Q2: Draw a simple class diagram showing only relationships between the classes. Implementation: After analysing the given requirements, implement the required application: with Object Oriented Programming style following the rules of good programming style (e.g. adding comments, etc.) • using only the material covered in M251 (and its prerequisites) Java language*

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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There are common attributes and methods between kids and trainers. What is the best choice for designing and writing the codes of these two classes? Explain your answer. þraw a simple class diagram showing only relationships between the classes. Implementation: After analysing the given requirements, implement the required application: with Object Oriented Programming style tellewing the rules of good programming style (e.g. adding comments, etc.) using only the material covered in M251 (and its prerequisites) Hints: For each class, it is required to implement constructors, setters, getters, tostring() method, and any other necessary method If the user tries to do an operation that could violate the state of objects, the operation sbould kejenered and the application should display an error message (e.g. adding a kid to the same group twice, etc.) Checking equality of any 2 objects should be done via the equals() method There is a class that will do the main job of keep tracking of the…
There are common attributes and methods between kids and trainers. What is the best choice for designing and writing the codes of these two classes? Explain your answer. þraw a simple class diagram showing only relationships between the classes. Implementation: After analysing the given requirements, implement the required application: • with Object Oriented Programming style tellowing the rules of good programming style (e.g. adding comments, etc.) using only the material covered in M251 (and its prerequisites) Hints: For each class, it is required to implement constructors, setters, getters, tostring() method, and any other necessary method If the user tries to do an operation that could violate the state of objects, the operation should bejenered and the application should display an error message (e.g. adding a kid to the same group twice, etc.) Checking equality of any 2 objects should be done via the equals() method There is a class that will do the main job of keep tracking of…
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…
Using composition to define classes represents the relationship defines objects, which is also a pillar of object-oriented programming. -a relationship whereas using represents the Is-a Write your answer here.
Implementation: After analysing the given requirements, implement the required application: with Object Oriented Programming style following the rules of good programming style (e.g. adding comments, etc.) using only the material covered in M251 (and its prerequisites) Hints: For each class, it is required to implement constructors, setters, getters, toString() method, and any other necessary method • If the user tries to do an operation that could violate the state of objects, the operation should be ignored and the application should display an error message (e.g. adding a worker to the same workshop twice, etc.) Checking equality of any 2 objects should be done via the equals() method There is a class that will do the main job of keep tracking of the workshops as follows: o t has one collection to store the whole data (all workshops of all product lines) It has static methods, one for each operation happens frequently For each adding or removing operation, a message should be…
Based on the class diagram image below, create customer, car, and parking lot classes for an object-oriented parking system. Classes should contain properties and method implemetaions. Include a small write-up about your implementation.
Creating classes, interfaces, and abstract classes in programming may be done in two ways. Distinguish between classes that have an interface and classes that are abstract. Why do you choose one over the other?
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.).…
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 Figure 5.5 on page 180 of the textbook. 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…
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 Figure 5.5 on page 180 of the textbook. 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.…
Using the class diagram in the image below, create customer, car, and parking lot classes for an object-oriented parking system. Classes should contain properties and method implementations. Use java to write your code. Add some attributes and methods of your own not included inside the class diagram Include a 200-word write-up to describe your implementation details and add screenshots of your code and output
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.