Identify the problems in the following code:1 public class Circle {2 private doub...

Identify the problems in the following code:

1    public class Circle {2       private double radius;34        public Circle(double radius) {5          radius = radius;6        }78        public double getRadius() {9           return radius;10        }1112        public double getArea() {13           return radius * radius * Math.PI;14        }15    }1617    class B extends Circle {18        private double length;1920        B(double radius, double length) {21           Circle(radius);22            length = length;23        }2425        @Override26      public double getArea() {27         return getArea() * length;28       }29    }