circle.java

来自「这是ACCP的JAVA ppt课件」· Java 代码 · 共 21 行

package Circle_Func;

public class Circle
{
	protected double pi=22.00/7.00;
	
	public double area(double r)
	{
		return pi*r*r;
	}
	
	public double volume(double r,double h)
	{
		return pi*r*r*h;
	}
	
	public double circumference(double r)
	{
		return 2*pi*r;
	}
}