class Circle {

    int radius;
    String color;

    public Circle(int radius, String color) {
        this.radius = radius;
        this.color = color;
    }
    double getArea() {
        return 3.14 * radius * radius;
    }
}

public class CircleTest {
    public static void main(String[] args) {
        Circle obj;
        obj = new Circle(100, "blue");

        double area = obj.getArea();
        System.out.println("원의 면적 = " + area);
    }
}