iven a Card class, implement a subclass called IDCard class. public class Card
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Given a Card class, implement a subclass called IDCard class.
public class Card
{
private String name;
public Card(String n) {
name = n;
}
public String format() {
return "Card holder: " + name;
}
}
public class IDCard
{
private String IDNumber;
public IDCard(String n, String id)
{
// your code goes here
}
// overriding method
public String format()
{
// your code goes here
}
}
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- 1/ Write a BankAccountTester class whose main method constructs a bank account, deposits $1,000, withdraws $500, withdraws another $400, and then prints the remaining balance. Also print the expected result 2/ Implement a class Employee. An employee has a name (a string) and a salary (a double). Provide a constructor with two arguments public Employee(String employeeName, double currentSalary) and methods public String getName() public double getSalary() public void raiseSalary(double byPercent) These methods return the name and salary, and raise the employee's salary by a certain percentage. Sample usage: Employee harry = new Employee("Hacker, Harry", 50000); harry.raiseSalary(10); // Harry gets a 10 percent raise Supply an EmployeeTester class that tests all methods. 3/Implement a class Car with the following properties. A car has a certain fuel efficiency (measured in miles/gallon or liters/km—pick one) and a certain amount of fuel in the gas tank. The efficiency is specified in…An arithmetic progression is a sequence of numbers such that the difference between the consecutive terms is constant. For instance, the sequence 5, 7, 9, 11, 13, 15 is an arithmetic progression with a common difference of 2. Given the class IntNumber: 1. public class IntNumber 2. { 3. public final int value; 4. 5. public IntNumber(int number) { 6. this.value = number; 7. } 8. } where value is an immutable field, that can be directly accessed (public), implement a class called ArithmeticProgression that implements the following methods: •1 public static IntNumber getArithmeticProgressionDifference(ArrayList< IntNumber> list) which returns the difference between terms of the arithmetic progression (as an object of type IntNumber) if the values of the IntNumber objects are an arithmetic progression. The method returns null in any other case. • public static void printIsArithmeticProgression(ArrayList<IntNumber> list ) which prints on the console: The list is an arithmetic…Implement a superclass Appointment and subclasses Onetime, Daily, and Monthly. An appointment has a description (for example, “see the dentist”) and a date (use int's to store the date). Write a method occursOn(int year, int month, int day) that checks whether the appointment occurs on that date. For example, for a monthly appointment, you must check whether the day of the month matches. Additionally, you will need to implement a class called Calendar. This will contain an ArrayList of Appointment objects (The list is an instance variable of the Calendar class). You will need to provide the following methods for your Calendar class. A no argument constructor public Calendar(){...} This constructor will initialize your ArrayList instance variable to an empty list. /** * A method to add an appointment to the calendar * @param apt – the appointment object to add to the calendar. */ public void add(Appointment apt) {…} /** * A method to remove an appointment from the…
- An arithmetic progression is a sequence of numbers such that the difference between the consecutive terms is constant. For instance, the sequence 5, 7, 9, 11, 13, 15 is an arithmetic progression with a common difference of 2.Given the class IntNumber:1 public class IntNumber2 {3 public final int value;45 public IntNumber(int number) {6 this.value = number;7 }8 }where value is an immutable field, that can be directly accessed (public), implement a class called ArithmeticProgressionthat implements the following methods:•1 public static IntNumber getArithmeticProgressionDifference(ArrayList<IntNumber> list)which returns the difference between terms of the arithmetic progression (as an object of type IntNumber) if thevalues of the IntNumber objects are an arithmetic progression. The method returns null in any other case.•1 public static void printIsArithmeticProgression(ArrayList<IntNumber> list)which prints on the console:The list is an arithmetic progression with difference =…Create an interface MessageDecoder that has a single abstract method decode(cipherText), where cipherText is the message to be decoded.The method will returnthe decoded message. Create a class SubstitutionCipher that implements the interface MessageDecoder as described above. The constructorshould have one parameter called shift. Define the method decode so that each letter is shifted by the value in the shif. For example, if shift is 3, a will be replaced by d, b will be replaced bt e, c will be replaced by f, and so on. Hint: You may wish to define a private methodthat shifts a single character. Create a class ShuffleCipher that implements the interface MessageDecoder. The constructor should haveone parameter called n. Define the method decode so that the message is shuffledn times.To perform one shuffle, split the message in half and then take the charactersfrom each half alternatively. For example, if the messsage is "abcdefghi", the halves are "abcde" and "fghi". The shuffled…In this problem, we are going to use ArrayLists and classes to design a road trip. You have three classes: GeoLocation.java which represents a geo location. A RoadTrip.java class, which represents a road trip (or an ordered list of places), and a RoadTripTester.java class which brings them all together. In GeoLocation.java: Add a private instance variable called name which is a String. This represents the name of the location. Modify the Geolocation class constructor so that it is now of the format public GeoLocation(String name, double theLatitude, double theLongitude) Add a getter method for name called getName(). Update the toString so that it returns a String of the format San Francisco (37.7833, -122.4167) Now, you’ll also need to create a RoadTrip class. RoadTrip stores an ordered list of locations, so you’ll need to have an ArrayList as an instance variable. The RoadTrip class constructor should initialize an ArrayList that stores a list of GeoLocations. You’ll also need to…
- USING JAVA: Part A) Implement a superclass Appointment and subclasses Onetime, Daily, and Monthly. An Appointment has a description (for example, “See the dentist”) and a date. Write a method, occuresOn(int year, int month, int day) The check whether the appointment occurs on that date. For example, for appointment, you must check whether the day of the month matches. This fill an array of Appointment objects with a mixture of appointments. Have the user enter a date and print out all appointments that occur on that date. Part B) Improve the appointment book by giving the user the option to add new appointments. The user must specify the type of the appointment, the description, and the date.Consider a class that keeps track of the sales of an item. An object of thisclass will have the attributes• Number sold• Total sales• Total discounts• Cost per item• Bulk quantity• Bulk discount percentageand the following methods:• registerSale(n) records the sale of n items. If n is larger than the bulkquantity, the cost per item will be reduced by the bulk discount.• displaySales displays the number sold, the total sales, and totaldiscount.a. Implement the class in Java.b. Write some Java statements that test the class.Write a java program Write a class named Employee with name and salary as private data fields. Add a constructor with both parameters. Write a class named Manager which unherits the Employee class. Add an instance variable, named department, of type String and 15 private. Add a constructor in the subclass class and a toString () method that prints the manager's name, department, and salary [Hint: Add a tastanel) method in the super class as well]. Create objects of Manager and Employee dass
- Implement a class that simulates a traffic light. The next method advances the color in the usual way, from green to yellow to red, then again to green. Provide two constructors, as described in the documentation of the public interface. Also supply a method that yields the number of times that this traffic light has been red. /** A simulated traffic light.*/public class TrafficLight{ private String color; private int reds; /** Constructs a green traffic light. */ public TrafficLight() { /* Your code goes here */ } /** Constructs a traffic light. @param initialColor the initial color "green", "yellow", or "red" */ public TrafficLight(String initialColor) { /* Your code goes here */ } /** Moves this traffic light to the next color. */ public void next() { /* Your code goes here */ } /** Returns the current color of this traffic light. @return the current color */ public String getColor() {…write program in java Design an abstract class GeometricObject. GeometricObject must ensure that its children must implement calcArea() method. Design RectangleYourRegNo and CircleYourName Classes as children of GeometricObject class with overridden toString() method to return “Rectangle with w Width and h Height is drawn” OR “Circle with r Radius is drawn”. The attributes of Rectangle are length, width. The attribute of Circle is radius Hint: Area of circle=πr2 , Area of rectangle= width*lengthHelp me out with this java problem. Given partial codes of the Colored interface and Point class as the following: //Colored interface public interface Colored{ public String getColor(); } //Point class public class Point { private int x; private int y; public Point() { this(0, 0); } public Point(int x, int y) { setLocation(x, y); } public boolean equals(Object o) { if (o instanceof Point) { Point other = (Point) o; return x == other.x && y == other.y; } else { return false; } } public void setLocation(int x, int y) { this.x = x; this.y = y; } public String toString() { return "(" + x + ", " + y + ")"; } } Write ColoredPoint class, so that implements the Colored interface and extends Point so that Points have colors. Override toString method to print out the coordinates and color of the point, override the equals method…