Implement a class Circle whose constructor has a parameter to represent a circle’s radius. Define the methods getRadius, getArea, getCircumference, and toString. The latter method should return a...

Implement a class Circle whose constructor has a parameter to represent a circle’s radius. Define the methods getRadius, getArea, getCircumference, and toString. The latter method should return a string containing the area and circumference of the circle.

Test your class using a driver that creates two different circles and calls each method of each circle.