Design a class named Person with properties for holding a person’s name, address, and telephone number. Next, design a class named Customer, which is derived from the Person class. The Customer class should have a property for a customer number and a Boolean property indicating whether the customer wishes to be on a mailing list. Demonstrate an object of the Customer class in a simple application.

Modify the Car class example and add the following:  A default constructor that initializes strings to “N/A” and numbers to zero.  An overloaded constructor that takes in initial values to set your fields (6 parameters). accel() method: a void method that takes a double variable as a parameter and increases the speed of the car by that amount. brake() method: a void method that sets the speed to zero.  To test your class, you will need to instantiate at least two different Car objects in the main method in the CarDemo class.  Each of your objects should use a different constructor. For the object that uses the default constructor, you will need to invoke the mutator methods to assign values to your fields. Invoke the displayFeatures() method for both objects and display the variables.  Demonstrate the use of the accessor method getColor() by accessing the color of each car and printing it to the console.  Use the method accel to increase the speed of the first car by 65 mph.  Use…

Describe how you can use an interface as an alternative to a class to specify the type for a parameter.

Help, I making a elevator simulator. I have to use polymorphism and object oriented programming to write this code. Can someone please help me improve this code I have. The remaining code is in the pictures. Any help is appreciated. Thank You! The simulation should have 4 types of Passengers: Standard: This is the most common type of passenger and has a request percentage of 70%. Standard passengers have no special requirements.  VIP: This type of passenger has a request percentage of 10%. VIP passengers are given priority and are more likely to be picked up by express elevators.  Freight: This type of passenger has a request percentage of 15%. Freight passengers have large items that need to be transported and are more likely to be picked up by freight elevators.  Glass: This type of passenger has a request percentage of 5%. Glass passengers have fragile items that need to be transported and are more likely to be picked up by glass elevators.   The simulation should also have 4 types…

JAVA Code Write a complete UML class diagram for the class described below. Use a line of minus signs to separate sections. Don't worry about drawing a box or centering any text. Do include all proper UML notation.  Your need to create an instantiable class that represents a asteroid heading towards Earth. This class should be named Asteroid. It will contain three fields: a string named name and a mass and velocity, measured in kg and m/s respectively, each of which can accept numbers with decimal points. An observatory wants to know how much kinetic energy each asteroid will have as it passes or hits the earth. The class needs one constructor that sets the values of all the fields. The class needs the following public methods: Getters and setters for all fields. A method called getKineticEnergy that calculates and returns the kinetic energy of the asteroid. (Kinetic energy is calculated as  0.5 x mass x velocity2.) Standard methods: toString, equals, and hashCode where equals and…

what is Incrementing  ?

The Essay class has a default constructor, a constructor with two parameters, and a constructor with three parameters. Declare the following objects: essay1 with no arguments essay2 with essayTitle and essayAuthor as arguments essay3 with essayTitle, essayAuthor, and essayYear as arguments Ex: If the input is Painting Cole 1919, then the output is:   Essay: Undefined, Unspecified, 0 Essay: Painting, Cole, 0 Essay: Painting, Cole, 1919 Archive.java      public class Archive { publicstaticvoidmain(String[] args) { Scannerscnr=newScanner(System.in); StringessayTitle; StringessayAuthor; intessayYear;   essayTitle=scnr.next(); essayAuthor=scnr.next(); essayYear=scnr.nextInt();   /* Your code goes here */   essay1.print(); essay2.print(); essay3.print(); } } Essay.java public class Essay {   private String title;   private String author;   private int year;      public Essay() { // Default constructor      title = "Undefined";      author = "Unspecified";      year = 0;   }…

No written by hand solution Must be coded in Java.

Java-  Suppose that Vehicle is a class and Car is a new class that extends Vehicle. Write a description of which kind of assignments are permitted between Car and Vehicle variables.

What is the main difference between a struct and a class?     (More than 1 answer can be chosen)