Wire is used in the following applications. For each application, prepare a list of wirecharacteristics that are relevant, (1) create class diagrams with attributes (2) create associateobjects with values for each class.Use the following wire applications: Each wire application should have a separate diagramlayout.a. Selecting wire for a transatlantic cableb. Designing the electrical system for an airplanec. Hanging a bird feeder from a treed. Designing a pianoe. Designing the filament for a light bulb

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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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Need help writing the program creating two different class. Provide with ss of ur code if possible and UML diagram.
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.
Simulation parameters: • Define a step size h. Try something small like 0.001 seconds. • Define a length for the simulation-perhaps 10 seconds for now, but feel free to adjust it as you see fit. • Create a list of times that begins at 0 and goes up to the simulation length in steps of h. The actual simulation only cares about the step size, so we won't use this in the simulation but we'll use it for plotting at the end. • Calculate the length of the list created in the previous step and assign it to a variable n. Data arrays: • Create a list r of length n that is all zeros (np.zeros could come in handy here). • Create a list s of length n that is all zeros. Initial conditions: • Set the first entry of r to be some initial height of your choosing. • Set the first entry of s to be some initial velocity of your choosing. First-order equations: • We need to define a function that calculates the derivative of r. Since Eq. 2.14 says that r' s, this is fairlv simply. We iust have to return c…
The Point2D should store an x and y coordinate pair, and will be used to build a new class via class composition. A Point2D has a x and a y, while a LineSegment has a start point and an end point (both of which are represented as Point2Ds). class Invariants The start and end points of a line segment should never be null Initialize these to the origin instead. Data A LineSegment has a start point This is a Point2D object All data will be private A LineSegment also has an end point. Also a Point2D object Methods Create getters and setters for your start and end points public Point2D getStartPoint() { public void setStartPoint(Point2D start) { Create a toString() function to build a string composed of the startPoint’s toString() and endPoint’s toString() Should look like “Line start(0,0) and end(1,1)” Create an equals method that determines if two LineSegments are equal public boolean equals(Object other) { if(other == null || !(other instanceof LineSegment)) return…
Describe the classes, methods and attributes that you would use in the Object Oriented design of a simulated automobile. Use this format to describe your classes: Class: Door Methods: void Open(), void Close(), void SetLock(bool), bool GetLocked(), etc. Attributes: bool open, bool locked, class Window, etc.
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The following Object Relationship Diagram (ORD) is given. Write the definition for each class based on the ORD above. Include the overloaded constructors in each class
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