Lecture 21 Objectives [Dec 04]prev next

ART MOMENT: .
 

Calling of St. Matthew Artist Bernardo Strozzi (1581-1644) Date: 1615-1620 Period: Italian Baroque    With student id, museum tickets cost only $8

At the end of today's class you should

HAVE READ:

• [pp. 395-398]

KNOW:

• that an array can have multiple dimensions

BE ABLE TO:

• Know how to construct a two-dimensional array
• How to write nested loops to access elements of a multiple-dimension array
• Write a small tic tac toe game [class example]

DAILY QUESTION:

• Following the image on pp. 397 of the book (reproduced in part below)
  
  
  
  what are the contents of the array ar after the following code executes.
  
   

  public static void main (String [] args) {     int [][] ar = new int[4][5];     for (int i = 0; i < ar.length - 1; i++) {         for (int j = i + 1; j < ar[0].length; j++) {             ar[i][j] = 1;         }     } }

  Answer the question by drawing the following, with a '0' or a '1' in the relevant array location.
  
  
  
   

Sample Exam question(s)

TBA