Java语言程序设计基础篇编程练习题1.8示例代码

public class Test1_08 {
	private static final double PI = 3.1415926;
	public static void main(String[] args) {
		double radius = 5.5;
		System.out.println("area is " + getArea(radius));
		System.out.println("perimeter is " + getPerimeter(radius));
	}
	public static double getArea(double radius) {
		return radius * radius * PI;
	}
	public static double getPerimeter(double radius) {
		return 2 * radius * PI;
	}
}

以上代码均为个人编写，不当之处，悉请指正。