public class CircleTester
{
    public static void main(String[] args)
    {
        Circle one = new Circle(10, "blue", 50, 35);
        Circle two = new Circle(10, "blue", 50, 35);
        Circle three = new Circle(20, "red", 0, 0);
        Circle four = three;

        // Modify this program to correctly compare objects
        // We should not be comparing objects using ==

        if(one.equals(two))
        {
            System.out.println("Circles one and two are equal!");
            System.out.println(one);
            System.out.println(two);
        }

        if(three.equals(four))
        {
            System.out.println("Circles three and four are equal!");
            System.out.println(three);
            System.out.println(four);
        }
    }
}
public class Circle
{
    private int radius;
    private String color;
    private int x;
    private int y;

    public Circle(int theRadius, String theColor, int xPosition, int yPosition)
    {
        radius = theRadius;
        color = theColor;
        x = xPosition;
        y = yPosition;
    }

    public int getRadius()
    {
        return radius;
    }

    public int getX()
    {
        return x;
    }

    public int getY()
    {
        return y;
    }

    public String getColor()
    {
        return color;
    }

    // Implement a toString method and an equals method here!
    public String toString()
    {
        // Change this!
        return color + " circle with a radius of " + radius + " at position (" + x + ", " + y + ")";
    }

    public boolean equals(Circle other)
    {
        // Change this!
        return radius == other.getRadius() && color.equals(other.getColor()) && x == other.getX() && y ==other.getY();
    }
}