Untitled

public class Auto {
    private int cantPuertas;
    private String color;

    public Auto(int cantPuertas, String color) {
        this.cantPuertas = cantPuertas;
        this.color = color;
    }

    public void mostrarColor() {
        System.out.println(color);
    }

    public void mostrarPuertas(){
        System.out.println(cantPuertas);
    }

}

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

        Auto auto = new Auto(6, "Verde");

        auto.mostrarColor();
        auto.mostrarPuertas();
    }
}