1. Complete the partial declaration of Class Car public class Car { declare three private instamce variables: color, speed, model / define a constructor with two parameters. C, m which will assign values to color and model. /define set and get method for all instance variables /define a method named calspeed() with int return type, the method will increase the speed by 50 mile per hour. 2. Complete the application below. public class CarApp { public static void main() { string color string model int speed %3D C2021;i %3D T08 //declare necessary object matching to the constructor definition 1/ display the color and model on the screen W call the calsneed) method and display the new speed after calculation. Page 2 of 2 可圓刨 24°C uaio

1. Complete the partial declaration of Class Car public class Car { declare three private instamce variables: color, speed, model / define a constructor with two parameters. C, m which will assign values to color and model. /define set and get method for all instance variables /define a method named calspeed() with int return type, the method will increase the speed by 50 mile per hour. 2. Complete the application below. public class CarApp { public static void main() { string color string model int speed %3D C2021;i %3D T08 //declare necessary object matching to the constructor definition 1/ display the color and model on the screen W call the calsneed) method and display the new speed after calculation. Page 2 of 2 可圓刨 24°C uaio

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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Complete the partial declaration of Class Car: public class Car { // declare three private instance variables: color, speed, model // define a constructor with two parameters: c , m which will assign values to color and model. //define set and get method for all instance variables //define a method named calspeed( ) with int return type, the method will increase the speed by 50 mile per hour. } Complete the application below. public class CarApp { public static void main() { string color = blue; string model = C2021;i int speed = 80; // declare necessary object matching to the constructor definition // display the color and model on the screen // call the calspeed( ) method and display the new speed after calculation. } }
2. Complete the application below. public class CarApp { public static void main() { string color = blue; string model = C2021;i int speed 80; %3D // declare necessary object matching to the constructor definition // display the color and model on the screen // call the calspeed) method and display the new speed after calculation. } }
Please help with the following: C# .NET change the main class so that the user is the one that as to put the name Write a driver class (app) that prompts for the person’s data input, instantiates an object of class HeartRates and displays the patient’s information from that object by calling the DisplayPatientRecord, method. MAIN CLASS---------------------- static void Main(string[] args) { // instance of patient record with each of the 4 parameters taking in a value HeartRates heartRate = new HeartRates("James", "Kill", 1988, 2021); heartRate.DisplayPatientRecord(); // call the method to display The Patient Record } CLASS HeartRATES------------------- class HeartRates { //class attributes private private string _First_Name; private string _Last_Name; private int _Birth_Year; private int _Current_Year; // Constructor which receives private parameters to initialize variables public HeartRates(string First_Name, string Last_Name, int Birth_Year, int Current_Year) { _First_Name =…
PYTHON: Define the Artist class with a constructor to initialize an artist's information and a print_info() method. The constructor should by default initialize the artist's name to "None" and the years of birth and death to 0. print_info() should display Artist Name, born XXXX if the year of death is -1 or Artist Name (XXXX-YYYY) otherwise. Define the Artwork class with a constructor to initialize an artwork's information and a print_info() method. 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. 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 I have the code but I am getting errors that I can't seem to get rid of any suggestions would be appreciated
Design a LandTract class that has two fields (i.e. instance variables): one for the tract’s length(a double), and one for the width (a double). The class should have:  a constructor that accepts arguments for the two fields  a method that returns the tract’s area(i.e. length * width)  an equals method that accepts a LandTract object as an argument. If the argument object holds the same data (i.e. length and width) as the calling object, this method should return true. Otherwise, it should return false.  a toString method (that returns a String representation of the tract’s length, width, and area). Demonstrate the class in a program by creating an array of three LandTract objects initialized with user input. Then, print the info of the LandTract objects stored in the array by invoking the toString method (implicitly or explicity). Also, use the equals method to compare at least two LandTract objects and print wether they are of equal size or not. Sample Output:…
1. Write the java code for the following class diagram. Mention the method overridden. Vehicle Car void: stop() int: speed() int :speed() void :m age
2. Add a constructor for Animal class shown. The constructor should pass in a string parameter named "sound". 1 using System; 2 3 public class Animal 4 { 5 public string Sound { get; set; } public void Speak() { Console.Writeline("The dog says " + Sound); } 10 11 } 12 13 public class Program 14 { public static void Main() { 15 16 17 18 } 19 } A 00
8. OOPS Theory #6 public class Car { public void horn() { System.out.println("Horn horn"); } } public class Ferrari extends Car { public void horn() { System.out.println("Ferarriiiiii"); } } public static void main(String[] args) { Ferrari ferrari = new Car(); ferrari.horn(); } Pick ONE option Horn horn Ferarriiii Cannot compile Runtime exception Clear Selection 9. OOPS Theory #7 In Java, we can achieve the abstraction by creating the blueprint of an object and only have abstract methods. What do we call this? Pick ONE option Interface Encapsulation Instance Protected Clear Selection
Design/code/test a Java program containing an abstract the class absWelcome. This class should contain: 1. A public abstract void method (you name it) that is empty 2. A public regular method (you name it) that prints "Welcome to " Next, create a subclass clsHello that extends absWelcome. This class should contain: • A public regular method (you name it) that prints "Java Programming" Finally, inside the Main class create an object (you name it) from the clsHello class. Use this new object reference to: 1. Output "Welcome to " from the abstract class 2. Output "Java Programming" from the subclass Your output should resemble that shown below >sh -c javac -classpath -type f-name '*.java') java -classpath :targe Welcome to Java Programming
public class Cat { private int age; public Cat (int a) { age = а; } public int getAge() { return a; } } Which of the following best explains why the getAge method will NOT work as intended? The instance variable age should be returned instead of a, which is local to the constructor. The variable age is not declared inside the getAge method. The getAge method should be declared as private. The getAge method should have at least one parameter.
The following class declaration has errors. Locate as many as you can. class Circle {private:double diameter; int centerX; int centerY; public:Circle(double d, int x, int y){ diameter = d; centerX = x; centerY = y; } // Overloaded = operatorvoid Circle=(Circle &right) { diameter = right.diameter; centerX = right.centerX; centerY = right.centerY; }... Other member functions follow ...};
Defining Classes Write and document the definition for the Money class. The Money class represents an amount in U.S. dollars. Money Class e Fields cents : int dollars : int e Methods getValue() : double Money(int d, int c) setCents(int c) : void setDollars(int d) : void toString() : String • Each Money object has two int instance variables: dollars and cents. • The class has one constructor that takes two int parameters. The first int represents whole dollars, and the second int represents cents. • The class has one accessor method named getValue() which returns the amount as a double. (Just divide cents by 100.0 and add it to dollars. Return that amount.) • The class has two mutator methods-setDollars() and setCents()–that modify the corresponding instance variables. • The class has a toString() method that returns the amount as a String in the form: $ 2345.75. Use concatenation to produce the output. Do not worry about the decimal places.