package cn.edu.bjut.chapter4;

public class CircleTester {
	public static void main(String[] args) {
		Circle1 c1 = new Circle1(5); 
		Circle2 c2 = new Circle2(5); 
		
		System.out.println(c1.area() + "\t" + c2.area());
		System.out.println(c1.perimeter() + "\t" + c2.perimeter());
	}
}