enlargetester.java

Java与面向对象程序设计实验教学讲义.复数类的实现,复数类的复杂运算,身份证号码的分析,图形界面设计

public class EnlargeTester {
    public static void main(String args[])
    {
          Circle c1 = new Circle();
          c1.radius = 50;
          Circle c2 = new Circle();
          c2.radius = 10;
          System.out.println("Circle 1 的周长: " + c1.circumference());
          System.out.println("Circle 2 的周长: " + c2.circumference());
          c2.enlarge(4);
          System.out.println("Circle 2 扩大后的周长: " + c2.circumference());
    }
}