1. Consider the following class declaration:

public class Circle

{

private double radius;

public Circle (double r)

{

radius = r;

}

public double getArea()

{

return Math.PI * radius * radius;

}

public double getRadius()

{

return radius;

}

}

1. Write atoString method for this class. The method should return a string containing the radius and area of the circle.
2. Write anequals method for this class. The method should accept a Circle object as an argument. It should return true if the argument object contains the same data as the calling object, or false otherwise.

3. Write agreaterThan method for this class. The method should accept a Circle object as an argument. It should return true if the argument object has an area that is greater than the area of the calling object, or false otherwise.