多項選擇題

Which two demonstrate an “is a” relationship? ()

A. public interface Person{}  public class Employee extends Person{}
B. public interface Shape{}  public class Employee extends Shape{}
C. public interface Color{}  public class Employee extends Color{}
D. public class Species{}  public class Animal (private Species species;)
E. interface Component{}  Class Container implements Component (  Private Component[ ] children;  )

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