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;  )

微信掃碼免費搜題