Question

Write an abstract superclass encapsulating a vehicle: A vehicle has two attributes: its owner's name and its number of wheels. This class has two non-abstract subclasses: one encapsulating a bicycle, ant the other encapsulating a motorized vehicle. A motorized vehicle has the following additional attributes: its engine volume displacement, in liters; and a method computing and returning a measure of horsepower which is the number of liters times the number of wheels. You also need to include a client class to test these two classes.

Answer 1

Note: Could you plz go through this code and let me know if u need any changes in this.Thank You
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// Vehicle.java

public abstract class Vehicle {
   private String ownerName;
   private int noOfWheels;

   public Vehicle(String ownerName, int noOfWheels) {
       this.ownerName = ownerName;
       this.noOfWheels = noOfWheels;
   }

   public String getOwnerName() {
       return ownerName;
   }

   public void setOwnerName(String ownerName) {
       this.ownerName = ownerName;
   }

   public int getNoOfWheels() {
       return noOfWheels;
   }

   public void setNoOfWheels(int noOfWheels) {
       this.noOfWheels = noOfWheels;
   }

}
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// Bicycle.java

public class Bicycle extends Vehicle {

   public Bicycle(String ownerName, int noOfWheels) {
       super(ownerName, noOfWheels);

   }

}
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// MotorVehicle.java

public class MotorVehicle extends Vehicle {
   private int engineVolume;

   public MotorVehicle(String ownerName, int noOfWheels, int engineVol) {
       super(ownerName, noOfWheels);
       this.engineVolume = engineVol;

   }

   public int getEngineVolume() {
       return engineVolume;
   }

   public void setEngineVolume(int engineVolume) {
       this.engineVolume = engineVolume;
   }

   public double horsePower()
   {
       return getNoOfWheels()*engineVolume;
   }
  
}

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// Test.java

public class Test {

   public static void main(String[] args) {
Bicycle b=new Bicycle("Kane Williams",2);
MotorVehicle m=new MotorVehicle("James",4,25);
System.out.println("Bicycle Info :");
System.out.println("Owners name:"+b.getOwnerName());
System.out.println("No of Wheels:"+b.getNoOfWheels());
System.out.println("\nMotorVehicle Info :");
System.out.print("Owners name:"+m.getOwnerName());
System.out.println("No of Wheels:"+m.getNoOfWheels());
System.out.println("Engine Volume Displacement:"+m.getEngineVolume());
System.out.println("Horse Power:"+m.horsePower());

   }

}
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Output:

Bicycle Info :
Owners name:Kane Williams
No of Wheels:2

MotorVehicle Info :
Owners name:JamesNo of Wheels:4
Engine Volume Displacement:25
Horse Power:100.0

_______________Could you plz rate me well.Thank You