Given： Which two classes use the Shape class correctly

多项选择题

Given：

Which two classes use the Shape class correctly？（）

A.public class Circle implements Shape {private int radius；}
B.public abstract class Circle extends Shape {private int radius；}
C.public class Circle extends Shape {private int radius；public void draw（）；}
D.public abstract class Circle implements Shape { private int radius；public void draw（）；}
E.public class Circle extends Shape {private int radius；public void draw（） {/* code here*/}}

OCJP(310-065)