Circle Question

package question3;

public class Question3 {

    public static void main(String[] args) {
        Circle spot = new Circle();
        Circle spot2 = new Circle(2);
        spot.setRadius(5);
        spot.circumference();
        spot.radius();
        spot.area();
        spot.displayArea();
        if (spot.equals(spot2)) {
            System.out.println("The objects are the same");
        } else {
            System.out.println("The objects are not the same");
        }
        System.out.println(spot);
        System.out.println(spot2);

    }

}
Circle Class

package question3;

public class Circle {
        private double radius;

    public Circle() {
        radius =1;
    }
    public Circle(double r) {
        radius = r;
    }
    public double getRadius(){
        return (radius);
    }

    public void circumference() {
        double circumf;
        circumf = (6.28*radius);
        System.out.println("The circumference is "+circumf);

    }
    public void radius() {
        double radi;
        radi = radius;
        System.out.println("The radius is "+radius);
    }
    public void setRadius(double newRadius){
        radius = newRadius;
    }
    public void radius(double r) {
        System.out.println("The radius is "+r);
    }
    public void area() {
        double r;
        double area;
        r = radius;
        area = (r*r*3.14);
        System.out.println("The area is "+area);
    }
    public static void displayArea() {
        System.out.println("The formula for the area of a circle is, Pi*r*r");
    }
    public boolean equals(Object c) {
        Circle testObj = (Circle)c;
        if (testObj.getRadius() == radius )
            return(true);
         else
            return(false);
    }
    public String toString() {
        String circleString;
        circleString = "Circle has radius " + radius;
        return(circleString);
    }
}