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- public class CircleTester
- {
- public static void main(String[] args)
- {
- Circle cup = new Circle(5);
- System.out.println("Area of a circle with radius 5: " + cup.getArea());
- System.out.println("Circumference of a circle with radius 5: " + cup.getCircumference());
- Circle hat = new Circle(12);
- System.out.println("\nArea of a circle with radius 12: " + hat.getArea());
- System.out.println("Circumference of a circle with radius 12: " + hat.getCircumference());
- }
- }
- public class Circle
- {
- private double radius;
- public Circle(double theRadius)
- {
- radius = theRadius;
- }
- // Implement getArea using
- // Math.PI and
- // Math.pow
- // Area = pi * r^2
- public double getArea()
- {
- Double Area = Math.PI * Math.pow(radius, 2);
- return Area;
- }
- // Implement getCircumference using
- // Math.PI
- // Circumference = 2 * PI * r
- public double getCircumference()
- {
- double Circumference = 2 * Math.PI * radius;
- return Circumference;
- }
- }
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