Lecture 20 Objectives [Dec 01]prev next

ART MOMENT: .
 

Lion Hunt Artist: Peter Paul Rubens (1577-1640) Date: 1615-1622   With student id, museum tickets cost only $8

At the end of today's class you should

HAVE READ:

• Code Examples for the day, showing use of ArrayList
• [pp. 268-270]

KNOW:

• the concept of a flexible Array that grows to meet demand
• the concept of boxing/unboxing [pp. 268-270]

BE ABLE TO:

• Use ArrayList where previously arrays had been used.
• Convert an existing program using array into one that uses ArrayList.

DAILY QUESTION:

• Given the Edge class, provided as part of the HW5 homework, explain what is wrong with the following code fragment:
  
   

  public void someMethod () {     try {         Edge e = new Edge (2, 40);     } catch (AmidaException ae) {         // Unable to construct Edge.         ae.printStackTrace();         return;     }     // Ok. now take this newly created Edge object and see if it is too close     // to an edge already on the board... }

  
   

Sample Exam question(s)

TBA