private String modelName;

    private int modelYear;

    private String color;

    private int maxSpeed;

    private int currentSpeed;

    Car(String modelName, int modelYear, String color, int maxSpeed) {

        this.modelName = modelName;

        this.modelYear = modelYear;

        this.color = color;

        this.maxSpeed = maxSpeed;

        this.currentSpeed = 0;

    }

    public String getModel() {

        return this.modelYear + "년식 " + this.modelName + " " + this.color;

    }

}

​

public class prog {

    public static void main(String[] args) {

        Car myCar = new Car();                  // 기본 생성자의 호출

        // Car myCar = new Car("아반떼", 2016, "흰색", 200); // 생성자의 호출

        System.out.println(myCar.getModel());   // 생성자에 의해 초기화되었는지를 확인함.

    }

}