/**

Test the car class

*/

public class CarTester

{

public static void main(String [] args)

{

Car myCar = new Car(10); // 10 KM per litre

double petrolLeft

myCar.addPetrol(20);

myCar.drive(10); // consumes 1 litre

myCar.drive(10); // and another litre

myCar.addPetrol(10);

petrolLeft = myCar.getPetrolInTank();

System.out.print("Petrol left: ");

System.out.println(petrolLeft);

System.out.println("Expected: 28");

System.out.print("KM driven: ");

System.out.println(myCar.getKMDriven());

System.out.println("Expected: 20");

}

}

Write the missing methods of the Calculator class

public class Calculator{

private int x;

public Calculator(int a)

{

x = a;

}

public void add(int y)

{

x += y;

}

//write multiply method

//write divide method

//write method to get the result

}