1  public class CircleTest {
  2  
  3    public static void main(String[] args) {
  4    
  5      // Variables:
  6      double r1 = 1, r2 = 1/(2*Math.PI);  // radii
  7      double circumference, area, radius;
  8      
  9      // Two circles:
 10      Circle circle1, circle2;
 11  
 12      // Test 1:
 13      circle1 = new Circle(r1);
 14      circumference = circle1.circumference();
 15      area = circle1.area();
 16      radius = circle1.getRadius();
 17      System.out.print("Circle 1:  radius = " + radius);
 18      System.out.print(", circumference = " + circumference);
 19      System.out.println(", area = " + area);
 20      
 21      // Test 2:
 22      circle2 = new Circle(); circle2.setRadius(r2);
 23      circumference = circle2.circumference();
 24      area = circle2.area();
 25      radius = circle2.getRadius();
 26      System.out.print("Circle 2:  radius = " + radius);
 27      System.out.print(", circumference = " + circumference);
 28      System.out.println(", area = " + area);
 29      
 30    }
 31    
 32  }