To automatically create a table of contents, you must use ____.

Which GUI concepts use polymorphism to establish their relationship?

a) a listener and its associated component b) a radio button and its default selection c) a button and its label d) a slider and its tick marks e) none of the above

Answer the following statements true (T) or false (F)

1. Each column in a table must have a name. 2. When you create a database table, you must specify a data type for each column. 3. The table row designated as the primary key must hold a unique value for each column. 4. The table column designated as the primary key must hold a unique value for each row.