211 Exam1.doc – A
Fall02

  1. 25 Pts: Write a class that implements this interface:
    public interface Exam /** interface to implement */
    {
                public float getFloat(); /** returns the float within the class */
                /** true if  larger than float within the class */
                public boolean isLarger(float number);
                /** adds number to float within the class */
                public void addTo(float number);
    } // end Exam
  2. 25 Pts:  Write a method that returns the first string in its array of strings parameter that begins with one of your (the test taker’s) initials.
  3. 25 Pts: Write a method for Button Array that returns true if there is a button whose label matches one of your (the test taker’s) names (first or last) and false otherwise.
  4. 25 Pts: Write a method that removes a button from a ButtonArray whose label matches one of your (the test taker’s) names (first or last).

211 Exam2.doc – B
Fall02

  1. 25 Pts:  Write a method that takes a ButtonList and inserts a Button whose label is your (the test taker’s) last name after every button whose label is your (the test taker’s) first name.
  2. 25 Pts:  Write a method that takes a LinkedList of Strings and inserts a String that is your (the test taker’s) last name before every string which is your (the test taker’s) first name.
  3. 25 Pts: Write a method that returns the last of the Buttons in a ButtonQueue3 have a label that starts with one of your (the test taker’s) initials.
  4. 25 Pts: Write a method that returns the last of the TextFields in a LinkedQueue of TextFields whose text starts with one of your (the test taker’s) initials.

211  Exam 3.doc – A
Fall02

  1. 25 Pts:  Take all the letters of your first and last names and put them into a search tree.  Output the search tree in prefix, postfix, and infix.
  2. 25 Pts:  Write a method of Tree that returns how many of the nodes in the tree are leaves (have no children).
  3. 25 Pts: Write a method of the recursive list type that returns how many of the strings on a RList of strings are your last name.
  4. 25 Pts: Write a method of the recursive list type that removes every string on a RList  that matches your first name.