Build a class named car. This class is defined as follows: It has the fields: Car ID, Car model , Car make, Car color, Car year. Build a constructor that accepts the five parameters (Car ID, Car model , Car make, Car color, Car year). Override the method toString() to return the string representation of Car ID, Car model , Car make, Car color, Car year.
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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:
Build a class named car. This class is defined as follows:
It has the fields: Car ID, Car model , Car make, Car color, Car year.
Build a constructor that accepts the five parameters (Car ID, Car model , Car make,
Car color, Car year).
Override the method toString() to return the string representation of Car ID, Car
model , Car make, Car color, Car year.
Step by step
Solved in 2 steps with 1 images
- In this exercise, you have to calculate the student's total marks using the concept of Classes Problem Statement# Write a Java class called Student with ● private fields: ○ name(String type) ○ mark1 and mark2 (double type) And methods: ● getMarks(int markNumber), a method which should return mark1 if markNumber equals 1 and mark2 otherwise. ● calcTotal() method should take the two marks entered and return their sum. Also define two constructors: ● A default constructor that takes no parameters and initializes the values to zeros and null. ● A constructor that takes the three variables and sets them as the values of the appropriate fields. Input# Name of the student and the marks obtained in the first and second tests Output# Sum of both marks Sample Input# Student student = new Student("Jack", 60, 70); Sample Output# getMarks(1) => 60 getMarks(2) => 70 calcTotal() => 130.0 Part of solution class Student { // Define private fields here public Student() { // Write…Create a new class called Dog that is derived from the Pet class given in Listing 6.1 of Chapter 6. The new class has the additional attributes of breed (type String) and boosterShot (type boolean), which is true if the pet has had its booster shot and false if not. Give your classes a reasonable complement of constructors and accessor methods. Write a driver program to test all your methods, then write a program that reads in five pets of type Dog and displays the name and breed of all dogs that are over two years old and have not had their booster shots.Sammy's Seashore Supplies rents beach equipment such as kayaks, canoes, beach chairs, and umbrellas to tourists. In Chapter 3, you created a Rental class for the company. The Rental class contains two public final static fields that hold the number of minutes in an hour and the hourly rental rate ($40), and four private fields that hold a contract number, number of hours for the rental, number of minutes over an hour, and the price. It also contains two public set methods and four public get methods. Now, modify the Rental class to contain two overloaded constructors. One constructor accepts a contract number and number of minutes as parameters. Pass these values to the setContractNumber() and setHoursAndMinutes() methods, respectively. The setHoursAndMinutes() method will automatically calculate the hours, extra minutes, and price. The other constructor is a default constructor that passes "A000" and 0 to the two-parameter constructor. Save the file as Rental.java. b. In Chapter…
- Write all the code necessary for a class Truck. A Truck can be described as having a make (String), model (String), gas tank capacity (double), and whether it has a manual transmission (or not). Include the following methods in your class definition. A default constructor. An overloaded constructor which takes the make and the model as parameters. This method throws an IllegalArgumentException if the make is “Jeep”. An overloaded constructor which takes the gas tank capacity as a parameter. This method throws an IllegalArgumentException if the capacity of the gas tank is not between 15 and 20 gallons (inclusive). That’s 3 constructors in total. Each constructor, once done executing, should have fully initialized all of the object’s properties (i.e., attributes/member variables). Do not implement a toString method; assume one is properly defined for you. Do not implement any getters or setters. import java.lang.IllegalArgumentException ; // Write your code hereMake a class with name(TerminalExam). Declare two variables i and j of type int in it. In constructor, initialize these variable with values specified in parameters. Make a method named calculate in this class of double return type. In this method, perform the addition of i and j and display the result. Make a second class(SubC2) which inherits from first class (TerminalExam). In this class’s constructor, pass two values as parameters but initialize the fields using superclass’s constructor. Override the method calculate() defined in superclass. In overridden method, calculate the difference of i and j and print the result. Then create a class in the same way for multiplication and division and override the method for multiplication and division respectively. Make another class(Add3V) which extends TerminalExam. In this class, declare a variable c of int type. In constructor of Add3V, call superclass constructor and then set value of c also. In calculate method, first call calculate…Write a convertToMetric class that has the following field: standard - holds a double, standard length value in feet. The class should have the following methods: Constructor - that accepts a length in feet (as a double) and stores it in the standard field. setStandard - accepts a standard length in feet and stores it in standard. getStandard - returns the value of the standard field, as a length in feet, no conversion required. getMeters - returns the value of the standard field converted to meters. getCentimeters - returns the value of the standard field converted to centimeters A second class will be created and used to test the new object class. This, executable class, is to instantiate an object of 'convertToMetric' type. Then it will allow the user to use keyboard input to input a value for standard. That value will then be converted to meters and centimeters, and displayed. Make sure that your output (or display) is user-friendly or easy to read and understand. You should…
- 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…Write a program named SalespersonDemo that instantiates objects using classes named Real EstateSalesperson and GirlScout. Demonstrate that each object can use a SalesSpeech() method appropriately. Also, use a MakeSale() method two or three times with each object, and display the final contents of each objects data fields. First, create an abstract class named Salesperson. Fields include first and last names; the Salesperson constructor requires both these values. Include properties for the fields. Include a method that returns a string that holds the Salespersons full name—the first and last names separated by a space. Then perform the following Create two child classes of Salesperson: Real EstateSalesperson and Girl Scout. The Real EstateSalesperson class contains fields for total value sold in dollars and total commission earned (both of which are initialized to 0), and a commission rate field required by the class constructor. The Girl Scout class includes a field to hold the number of boxes of cookies sold, which is initialized to 0. Include properties for every field. Create an interface named ISell able that contains two methods: SalesSpeech() and MakeSale(). In each Real EstateSalesperson and Girl Scout class, implement SalesSpeech() to display an appropriate one- or two-sentence sales speech that the objects of the class could use. In the Real Estatesalesperson class, implement the MakeSale() method to accept an integer dollar value for a house, add the value to the Real EstateSalespersons total value sold, and compute the total commission earned. In the Girl Scout class, implement the MakeSale() method to accept an integer representing the number of boxes of cookies sold and add it to the total field.Please in pyth coding with correct indentation 4a) Given that you have a Liquid class that can be initialized with any amount of gallons, liters, ounces, etc, write the first line of the method that will allow you to add together two Liquid objects using operator overloading. Again, write ONLY the first line (method definition) – you do NOT have to write the entire method. 4b) Given that you have L1 and L2 which are instances of the Liquid class, write a line of code that uses operator overloading to add them together and assign the result to L3.
- PLEASE FAST Define a class called Country. A Country has populationSize, area, capital, currency, and abbreviation (2-3 letters taken from the country name). Define at least two constructors, at least two getter methods, at least two setter methods, and Override the toString() and the equals() methods. The equals() method must return true if the two countries have the same name and same populationSize and false otherwise. The abbreviation is the first letter and the second letter of the country name and must be generated automatically (e.g. if the country name is Palestine the abbreviation is PA, if the country name is Jordan the abbreviation is JO.) Write a main method, define an array of country objects, read countries data from the user, if two countries have the same abbreviation add the last letter from the country name to the abbreviation of the country inserted last. Display countries whose area is greater than 10000 km2.You are required to build a class JewelleryItem. A jewellery Item has a type (string) , price (float),material (string), daysToGo (int).These attributes represent the type i.e ‘ear ring’, necklace, finger ring etc. The material can be gold,silver, plastic etc. The daysToGo attribute represents the number of days it will remain fit for use.1. You are required to provide the following parameterized constructors JewelleryItem(string type, float price, string material, int daysToGo) Jewlleryitem(string type, float price, int daysToGo) // the material will get “gold” as default JewelleryItem(string type, float price) //the material defaults to gold and daysToGo defaults to100.2. Now provide getters for each of the attributes above but setters for only price, daysToGo3. Provide a function/method makeUse(). This function represents the use of this item for one daywhich reduces the daysToGo by 1. This function returns true if the daysToGo is greater than 1 andfalse otherwise. This means…In the class definition, initialize the private fields owner (string), rating (integer), and state (string) with the default values "Unstated", -1, and "Undefined", respectively. Ex: If the input is Ken 4 NY, then the output is: Default values: Name: Unstated's Food Truck, Rating: -1, State: Undefined After mutator methods: Name: Ken's Food Truck, Rating: 4, State: NY Note: The class's print() method is called before and after the input is passed to the setters. Eatery.java public class Eatery { private /* Your code goes here */ private/* Your code goes here */ private/* Your code goes here */ publicvoidsetOwner(StringeateryOwner) { owner=eateryOwner; } publicvoidsetRating(inteateryRating) { rating=eateryRating; } publicvoidsetState(StringeateryState) { state=eateryState; } publicvoidprint() { System.out.println("Name: "+owner+"'s Food Truck, Rating: "+rating+", State: "+state); } }