摘要:
public class ComputerCircleArea{public static void main(String arg[]){double radius;double area;radius=163.16;area=3.14*radius*radius;System.out.printf("%5.3f:\n%5.3f\n",radius,area);}}class Circle{double radius;double getArea(){double area=3.14*radius*radius;return area;}}public class Exa 阅读全文