Item D in the accompanying figure is the Object States panel.

Which of the following are static Character methods?

a. Character.hashcode(char c); b. Character.isDigit(char c); c. Character.equals(char c); d. All of the above.

The technique of implementing each stack method as a call to a List method is called __________.

a. delegation. b. delimiting. c. assigning. d. shifting responsibility.