package Shape;

public class ShapeTest {
    public static void main(String[] args){
        System.out.println("--测试三个类--");
        //circle
        Circle round=new Circle(5);
        Rectangle b=new Rectangle(4,7);
        Triangle c=new Triangle(8,4);
        ShapeUtil.printArea(round);
        ShapeUtil.printArea(b);
        ShapeUtil.printArea(c);
    }
}