Question

In: Computer Science

Create a class called Vehicle that includes four instance variables:      name, type,     tank size and...

Create a class called Vehicle that includes four instance variables:

     name, type,

    tank size and average petrol consumption.

  1. Provide 2 constructors, the first takes name and type as parameter, the second takes four parameters for the four instance variables. (2 pt)
  2. Provide also a method called distancePerTank that calculate the average distance that a vehicle can travel if the tank is full (multiplies the tank size by the average petrol consumption), then returns the value. (2 pt)
  3. Provide a toString method, where its returned value

If tank size and average petrol consumption are not given, then return:

Vehicle [name=”Corolla”, type=”Sedan” ]

Otherwise its returned value:

Vehicle [name=”Corolla”, type=”Sedan”, tank Size=50.00 liters, average petrol consumption =22.00 liter/KM, can cross 1100.00 per tank]

(3 pt)

  1. Write a driver class to test the class Vehicle using different versions of the constructor and the toString method. (3 pt)

Running example:

Vehicle [name=”Corolla”, type=”Sedan” ]

Vehicle [name=”A5”, type=”Coupe” ]

Vehicle [name=”Mustange”, type=”Sport”, tank Size=60.00 liters, average petrol consumption =8.00 liter/KM, can cross 480.00 per tank ]

Vehicle [name=”Civic”, type=”Sedan”, tank Size=47.00 liters, average petrol consumption =15.00 liter/KM, can cross 705.00 per tank ]

Solutions

Expert Solution

code:

public class Main_vehicle
{
public static void main(String[] args) {

   Vehicle ob = new Vehicle("Corolla","Sedan");
   System.out.println(ob);

   Vehicle ob1 = new Vehicle("A5","Coupe");
   System.out.println(ob1);

   Vehicle ob2 = new Vehicle("Mustange","Sport",60,8);
   System.out.println(ob2);

   Vehicle ob3 = new Vehicle("Civic","Sedan",47,15);
   System.out.println(ob3);

}
}

class Vehicle
{
    String name;
    String type;
    double tank_size=0;
    double avg_petrol_consumption=0;

    public Vehicle(String name, String type)
    {
        this.name = name;
        this.type = type;
    }

    public Vehicle(String name, String type, double tank_size, double avg_petrol_consumption)
    {
        this.name = name;
        this.type = type;
        this.tank_size = tank_size;
        this.avg_petrol_consumption = avg_petrol_consumption;
    }

    double distancePerTank()
    {
        return tank_size*avg_petrol_consumption;
    }

    public String toString()
    {
        if((tank_size!=0)&&(avg_petrol_consumption!=0))
        {
            return "Vehicle [name=\""+name+"\", type=\""+type+"\", tank Size="+tank_size+" liters, average petrol consumption ="+avg_petrol_consumption+" liter/KM, can cross "+distancePerTank()+" per tank]";
        }
        else
        {
            return "Vehicle [name=\""+name+"\", type=\""+type+"\"]";
        }
    }
}

output:

venereology answered 2 years ago
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