java.lang.NoSuchMethodError: main Exception in thread "main"
대체 이거 뭔가요...
왜나는거죠? ㅜㅜ
class Circle{ protected int r; public double getCircumference(){ return 3.14*2*r; } public double getArea(){ return 3.14*r*r; } public int getRadius(){ return r; } public void setRadius(int r){ this.r = r; } public class UserCircle { public void main(String args[]){ Circle c = new Circle(); c.setRadius(7); System.out.println("원 둘레 : " + c.getCircumference()); System.out.println("원 면적" + c.getArea()); } } }