public class AbstractClass {
public static void main(String[] args){
Shape circle = new Circle("圆",10.5);
//Circle circle = new Circle("圆",10.5);
System.out.print("面积为:" + circle.getArea() + " 周长为:" + circle.getLength());
final double i = 0;
System.out.println("\n" + i);
double j;
j = 0;
System.out.println(j);
}
}
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