Circle.java

package proj20012023;

public class Circle {
    // attributes
    private double r;
    private double x, y;

    // ctor
    public Circle(double x, double y, double r) {
        this.x = x;
        this.y = y;
        this.r = r;
    }

    public Circle(double x, double y) {
        this.x = x;
        this.y = y;
        this.r = 1.0;
    }

    public Circle() {
        this.x = 1;
        this.y = 1;
        this.r = 1;
    }

    // getters
    public double getR() {
        return r;
    }

    public double getX() {
        return x;
    }

    public double getY() {
        return y;
    }

    // setters
    public void setR(double newR) {
        if (newR >= 0)
            r = newR;
    }

    public void setX(double newX) {
        x = newX;
    }

    public void setY(double newY) {
        y = newY;
    }

    // get
    public double getArea() {
        double s = (Math.PI * r * r);
        return s;
    }

    // set
    public void setArae(double area) {
        if (area >= 0)
            this.r = Math.sqrt(area / Math.PI);
    }

    @Override
    public String toString() {
        return "Circle [r=" + r + ", x=" + x + ", y=" + y + "]";
    }

}