
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Transcribed Image Text:Given the following class definitions and a declaration of Book b = new Dictionary() which of the following will cause a
compile-time error?
public class Book
{
public String getISBN()
{
}
// implementation not shown
// constructors, fields, and other methods not shown
}
public class Dictionary extends Book
{
public String getDefinition()
// implementation not shown
}
O b.getDefintion();
O b.getISBN():
O ((Dictionary) b).getDefinition();
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