JAVA PROGRAM
Define the Circle class that contains:
Data field radiuses with get and set methods.
A no-arg constructor that creates a default Circle with radius value 1.
A constructor that creates a circle with specified radius.
A method getArea() that returns the area of the circle.
A method getPerimeter() that returns the perimeter of the circle.
Define the TestCircle class that contains:
Object of circle c1 (no-arguments)
Object of circle c2 (passing radius value 5)
Display Circle c1 radius, area and perimeter
Set c1 radius to 6 and c2 radius to 7
Display Circle c2 radius, area and perimeter