Question 1
All the concrete classes in the Java Collections Framework implement ________.
◦ the Comparable interface
◦ the Comparator interface
◦ the Serializable interfaces
◦ the Cloneable interface
Question 2
Which of the following statements are true?
◦ The Collection interface provides the basic operations for adding and removing elements in a collection.
◦ The AbstractCollection class is a convenience class that provides partial implementation for the Collection interface.
◦ Some of the methods in the Collection interface cannot be implemented in the concrete subclass. In this case, the method would throw java.lang.UnsupportedOperationException, a subclass of RuntimeException.
◦ All interfaces and classes in the Collections framework are declared using generic type since JDK 1.5.
◦ The Collection interface is the root interface for manipulating a collection of objects.
A true albino squirrel. Note the pink eyes.
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
true story
Which is TRUE about the alternation of generations cycle that is diagramed above?
Midsagittal section indicating locations of true and false pelves