public class Student { 
  public void read(Book book){ 
    System.out.println("学生开始阅读："+book.getName()); 
  } 
} 
 
public class Book { 
  public String getName() { 
    return "书籍"; 
  } 
} 

public interface Person { 
  public void read(Reader reader); 
} 
 
public interface Reader { 
  public String getName(); 
} 
 
public class Student implements Person{ 
  @Override 
  public void read(Reader reader) { 
    System.out.println("学生开始阅读："+reader.getName()); 
  } 
} 
 
public class Book implements Reader { 
  public String getName() { 
    return "书籍"; 
  } 
} 
 
public class Website implements Reader { 
  public String getName() { 
    return "网页"; 
  } 
} 
 
public class Test { 
  public static void main(String[] args) { 
    Person student = new Student(); 
    student.read(new Book()); 
    student.read(new Website()); 
  } 
}