Program to demonstrate inheritance (Example-2)

class Car
{
    public String make;
    protected int weight;
    private String color;
    private Car(String make,int weight,String color)
    {
        this.make=make;
        this.weight=weight;
        this.color=color;
    }
    public Car()
    {
        this("unknown",-1,"white");
    }
}

class ElectricCar extends Car
{
    private int rechargeHour;
    public ElectricCar()
    {
        this(10);
    }

    private ElectricCar(int charge)
    {
        super();
        rechargeHour=charge;
    }
}

class TestCar
{
    public static void main(String args[])
    {
        Car mycar1,mycar2;
        ElectricCar myelec1,myelec2;
        mycar1=new Car();
        mycar2=new Car("Ford",1200,"Green");
        myelec1=new ElectricCar();
        myelec2=new ElectricCar(15);
    }
}