Question

-please use java

3. Interface: Implement a program that creates an Interfacecalled Vehiclewith the following abstract methods(getters): getMake(), getModel(), getYear(), and creates a Classcalled Carthatimplements the Vehicleinterface. The Carclass also contains instance data that represents the make, model, and year of the carand the constructor to initialize these values.Create a driver class called CarTest, whose main method instantiates a Carobject with the following information: Chevrolet, Impala, 2019, and test the getter methods you implement.

4. Abstract Class: Implement the above problem 3 by defining Vehicleas an Abstract Classinstead of an Interface.

Answer 1

interface Vehicle {
   String getMake();
   String getModel();
   int getYear();
}

class Car implements Vehicle {

   private String make;
   private String model;
   private int year;
  
  
   public Car(String aMake, String aModel, int aYear) {
       super();
       make = aMake;
       model = aModel;
       year = aYear;
   }
   @Override
   public String getMake() {
       return null;
   }
   @Override
   public String getModel() {
       // TODO Auto-generated method stub
       return null;
   }
   @Override
   public int getYear() {
       // TODO Auto-generated method stub
       return 0;
   }
   @Override
   public String toString() {
       return "Car [make=" + make + ", model=" + model + ", year=" + year + "]";
   }

}

public class TestVehicle {
   public static void main(String[] args) {
       Car c = new Car("Honda", "City", 2014);
       System.out.println(c);
      
   }
}

Answer 2:

abstract class Vehicle {
   public abstract String getMake();
   public abstract String getModel();
   public abstract int getYear();
}

class Car extends Vehicle {

   private String make;
   private String model;
   private int year;
  
  
   public Car(String aMake, String aModel, int aYear) {
       super();
       make = aMake;
       model = aModel;
       year = aYear;
   }
   @Override
   public String getMake() {
       return null;
   }
   @Override
   public String getModel() {
       // TODO Auto-generated method stub
       return null;
   }
   @Override
   public int getYear() {
       // TODO Auto-generated method stub
       return 0;
   }
   @Override
   public String toString() {
       return "Car [make=" + make + ", model=" + model + ", year=" + year + "]";
   }

}

public class TestVehicle {
   public static void main(String[] args) {
       Car c = new Car("Honda", "City", 2014);
       System.out.println(c);
      
   }
}

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