10.1 (THE TIME CLASS) Design a class named Time. The class contains: · The data fields hour, minute, and second that represent a time. · A no-arg constructor that creates a Time object for the current time. (The values of the data fields will represent the current time.)
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
10.1 Using java eclipse
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- 9.1: MonetaryCoinDesign and implement a class called MonetaryCoin that is derived from the Coin class presented in Chapter 5. Store an integer in the MonetaryCoin that represents its value and add a method that returns its value. Add a toString method that appends a space followed by the coin's value to the Coin's String representation. Driver. Instead of creating a main driver class, include a main method in the MonetaryCoin class itself to exercise the class's behavior. Your method should create an array of 7 MonetaryCoin objects with values 1,5,10,25,50,100,100 and then iterate through the array, flipping in each coin. The method should then iterate through the array again, invoking the getValue method and adding up the resulting values. The String representation of each coin should then be printed on a line by itself, followed by, on a line by itself, the sum of the values that was computed (preceded by the label "Total Value: ". Code from chapter 5 public class Coin{…7.13 LAB: Vending machine Given two integers as user inputs that represent the number of drinks to buy and the number of bottles to restock, create a VendingMachine object that performs the following operations: Purchases input number of drinks Restocks input number of bottles Reports inventory A VendingMachine's initial inventory is 20 drinks. Ex: If the input is: 5 2 the output is: Inventory: 17 bottles GIVEN: class VendingMachine: def __init__(self): self.bottles = 20 def purchase(self, amount): self.bottles = self.bottles - amount def restock(self, amount): self.bottles = self.bottles + amount def get_inventory(self): return self.bottles def report(self): print('Inventory: {} bottles'.format(self.bottles)) if __name__ == "__main__": # TODO: Create VendingMachine object # TODO: Purchase input number of drinks # TODO: Restock input number of bottles # TODO: Report inventory11.10 Create the compareTo function for a class that will be sorted by the double-valued field key. Take note: The compareTo result must be an int. 11.11 Create the compareTo function for a class that represents a person whose first and last names are stored as two Strings. If one person is listed alphabetically by last name, followed by first name (as is common), they are "less than" the other person.
- 11.I (The Triangle class) Design a class named Triangle that extends Geometricobject. The class contains: 1 Three double data fields named side1, side2, and side3 with default val- ues 1.0 to denote three sides of a triangle. I A no-arg constructor that creates a default triangle. A constructor that creates a triangle with the specified side1, side2, and side3. 1 The accessor methods for all three data fields. I A method named getArea () that returns the area of this triangle. I A method named getPerimeter () that returns the perimeter of this triangle. 1 A method named toString () that returns a string description for the triangle. For the formula to compute the area of a triangle, see Programming Exercise 2.19. The toString () method is implemented as follows: return "Triangle: side1 = " + side1 + " side2 = " + side2 + side3 = " + side3; Draw the UML diagrams for the classes Triangle and Geometricobject and implement the classes. Write a test program that prompts the user to enter…phys2 - Google Drive Books ▾ WhatsApp Study Career Life 9.6 (Stopwatch) Design a class named StopWatch. The class contains: Private data fields startTime and endTime with getter methods. ■ A no-arg constructor that initializes startTime with the current time. ■ A method named start() that resets the startTime to the current time. ■ A method named stop() that sets the endTime to the current time. ■ A method named getElapsedTime) that returns the elapsed time for the stopwatch in milliseconds. Show transcribed image text Draw the UMI. diagram for the class and then implement the class. Write a test program that measures the execution time of sorting 100,000 numbers using selection sort. For ed9.3 Example: Defining Classes and Creating Object (Cont'd) ATV class example (Take home exercise, no credit) TV channel: int The curent channel (1 to 120) of this TV. volumelevel: int The current volume level (1 to 7) of this TV. on: boolean Indicates whether this TVis on/off. The + sign indicates a public modifier. +TV () Constructs a de fault TV objęct. +turnon () : void Turns on this TV. +turnoff (): voíd +setChannel (newChannel: int): void +setVolume (newVolumeLevel: int): void +channelUp(): void Turns off this TV. Sets a new channel for this TV. Sets a new volume level for this TV. Increas es the channel number by 1. +channel Down (): void Decreases the channel number by 1. +volumeUp () : void Increas es the volume level by 1. +volumeDown () : void Decreases the volume level by 1.
- 2.14 LAB: Pet information (derived classes) The base class Pet has protected fields petName, and petAge. The derived class Dog extends the Pet class and includes a private field for dogBreed. Complete main() to: • create a generic pet and print information using printinfo(). • create a Dog pet, use printInfo() to print information, and add a statement to print the dog's breed using the getBreed() method. Ex. If the input is: Dobby 2 Kreacher 3 German Schnauzer the output is: Pet Information: Name: Dobby Age: 2 Pet Information: Name: Kreacher Age: 3 Breed: German Schnauzer 430560.2938290.qx3zqy7 LAB ACTIVITY File is marked as read only 1 public class Dog extends Pet { 2 private String breed; 3 4 5 6 7 8 9 2.14.1: LAB: Pet information (derived classes) 10 11} } Current file: Dog.java ▾ public void setBreed (String userBreed) { breed userBreed; } public String getBreed() { return breed; 0/10*** PYTHON*** Define the Artist class in Artist.py with a constructor to initialize an artist's information. The constructor should by default initialize the artist's name to "None" and the years of birth and death to 0. Define the Artwork class in Artwork.py with a constructor to initialize an artwork's information. The constructor should by default initialize the title to "None", the year created to 0, and the artist to use the Artist default constructor parameter values. Add an import statement to import the Artist class. Add import statements to main.py to import the Artist and Artwork classes. Ex: If the input is: Pablo Picasso 1881 1973 Three Musicians 1921 the output is: Artist: Pablo Picasso (1881-1973) Title: Three Musicians, 1921 If the input is: Brice Marden 1938 -1 Distant Muses 2000 the output is: Artist: Brice Marden, born 1938 Title: Distant Muses, 2000. # TODO: Import Artist from Artist.py and Artwork from Artwork.py if __name__ == "__main__":user_artist_name =…1/3 Part-1 (Objects and Classes) Create a Java Project (with a class and a test class) to represent some real-world entity such as a technology item (TV. Fan etc), an animal, a person, a vehicle, etc. In our class, we have already seen example classes such as Circle, Student, Rectangle, TV etc. The class will: a) Create a total of 5 member variables for the class by selecting the appropriate data types for each field. For example, a class to represent a lamp might include color, price, height, numBulbs, batteryOperated. Each of these 5 variables needs a data type. b) Include at least three different constructor methods, including the default constructor (no argument constructor), so totally three constructors. c) Create a method called showValues( ) to display the values of an object in a formatted manner, The Java test class (with a main method) will: a) Instantiate at least three objects (using each of the constructors at least once) with your program. b) Store the data from the…
- ** StopWatch class ** Often, we need to determine how long it takes/took to perform a certain action(s). Write a class, StopWatch which will provide an easy interface to the computer's timing facilities. When you first create a Timerobject, it should be set to a 'stop' state. When the programmer wants to time something, they call the start) method before the action executes and call the stop) method after the event finishes. The elapsed) method will return (in whole seconds) how long the action took. This simple operation may not suit all programmers' needs. To allow more general usage, we'll also the programmer to start the timer at the object's declaration. Also, a programmer can get the elapsed time whether the timer is still running or not. Finally, we'll provide an toString() method so the programmer can directly print the currently elapsed time without having to retrieve it separately. In addition, allow the programmer to subtract) and add0 two StopWatch objects to receive a…6.1 LAB: Pet information (derived classes)The base class Pet has protected fields petName, and petAge. The derived class Cat extends the Pet class and includes a private field for catBreed. Complete main() to: create a generic pet and print information using printInfo().create a Cat pet, use printInfo() to print information, and add a statement to print the cat's breed using the getBreed() method.Ex. If the input is: Dobby2Kreacher3Scottish Foldthe output is: Pet Information:Name: DobbyAge: 2Pet Information:Name: KreacherAge: 3Breed: Scottish Fold23.4 LAB: Student class (Use Python) In main.py define the Student class that has two attributes: name and gpa Implement the following instance methods: A constructor that sets name to "Louie" and gpa to 1.0 set_name(self, name) - set student's name to parameter name get_name(self) - return student's name set_gpa(self, gpa) - set student's gpa to parameter gpa get_gpa(self) - return student's gpa Ex. If a new Student object is created, the default output is: Louie/1.0 Ex. If the student's name is set to "Felix" and the gpa is set to 3.7, the output becomes: Felix/3.7