Write a class called Car that models the amount of gas required by the car to dr

ID: 3782251 • Letter: W

Question

Write a class called Car that models the amount of gas required by the car to drive a certain distance. The attributes of the Car object are: • tank capacity (in liters) (a double) • amount of gas in tank (in liters) (a double) • fuel consumption rate (in liters/km) ( a double)

FULL QUESTION IN IMAGES BELOW

---------------

Exercise 5: [10 points] Write a class called Car that models the amount of gas required by the car to drive a certain distance. The attributes of the Car object are: tank capacity (in liters (a double) amount of gas in tank (in liters (a double) fuel consumption rate (in liters km a double) It has the following methods: a constructor public Car(double c, double f that sets the tank capacity to c, fuel consumption to f. It should also set the amount of gas in tank to 0 Get and set methods for all the attributes.

Explanation / Answer

// Car.java

public class Car {
   //constructor
   public Car(double c, double f) {
       this.tankCapacity = c;
       this.fuelConsumtionRate = f;
       this.gas = 0;
   }

   // required private fields
   private double tankCapacity;
   private double gas;
   private double fuelConsumtionRate;


   // method to fill gas in tank
   public void fill(double g)
   {
       if ((g + getGas()) > getTankCapacity())
       {
           System.out.println("Cannot fill. Exceeds capacity.");
       }
       else
       {
           setGas(g+getGas());
       }
   }

   // method to drive
   public void drive(double d)
   {
       // computing gas required to drive d distance.
       double requiredGas = d*getFuelConsumtionRate();

       if (requiredGas > getGas())
       {
           System.out.println("Cannot drive. Not enough gas.");
       }
       else
       {
           setGas(getGas() - requiredGas);
       }
   }

   //getters and setters

   public double getTankCapacity() {
       return tankCapacity;
   }
   public void setTankCapacity(double tankCapacity) {
       this.tankCapacity = tankCapacity;
   }
   public double getGas() {
       return gas;
   }
   public void setGas(double gas) {
       this.gas = gas;
   }
   public double getFuelConsumtionRate() {
       return fuelConsumtionRate;
   }
   public void setFuelConsumtionRate(double fuelConsumtionRate) {
       this.fuelConsumtionRate = fuelConsumtionRate;
   }


}

// CarTest.java

import java.util.*;

public class CarTest {

   public static void main(String[] args) {

       // scanner is used to get user input
       Scanner sc = new Scanner(System.in);
       System.out.print("Enter the capacity (in litres): ");
       double capacity = sc.nextDouble();

       System.out.print("Enter the fuel consumption rate (in lt/km): ");
       double rate = sc.nextDouble();

       Car c = new Car(capacity, rate);

       System.out.print("Enter the amount of gas to fill: ");
       double gas = sc.nextDouble();

       System.out.print("Enter the disatnce to drive: ");
       double d = sc.nextDouble();

       c.fill(gas);

       c.drive(d);

       System.out.println();
       System.out.println("Gas remaining in tank: " + c.getGas());
   }

}

Sample run

Enter the capacity (in litres): 20
Enter the fuel consumption rate (in lt/km): 0.1
Enter the amount of gas to fill: 30.0
Enter the disatnce to drive: 100.0
Cannot fill. Exceeds capacity.
Cannot drive. Not enough gas.

Gas remaining in tank: 0.0

Navigate

Write a class called Car that contains instance data that represents the make, m

Write a class called Car. There should be three member variables called model, y

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.

Write a class called Car that models the amount of gas required by the car to dr

Question

Explanation / Answer

Related Questions

Navigate