Hi, All the question are in Word file.

LISTING 9.9 TestCircleWithPrivateDataFields.java public class TestCircleWithPrivateDataFields { /** Main method */ public static void main(String[] args) { // Create a circle with radius 5.0 CircleWithPrivateDataFields myCircle = new CircleWithPrivateDataFields(5.0); System.out.println("The area of the circle of radius " + myCircle.getRadius() + " is " + myCircle.getArea()); // Increase myCircle's radius by 10% myCircle.setRadius(myCircle.getRadius() * 1.1); System.out.println("The area of the circle of radius " + myCircle.getRadius() + " is " + myCircle.getArea()); System.out.println("The number of objects created is " + CircleWithPrivateDataFields.getNumberOfObjects()); } }