Lecture 11 – October 3^rd

For the rest of the semester we will meet in ISAT/CS 250 (the lab) not in ISAT/CS 243

Today we worked with Ada’s access variables…

Here is a more elegant example of the problem we solved in class –

You MUST study THIS code (rather than the examples you or I created in class)

First we created a filled a cell

Then we created a filled a second cell

Then we attached the two cells with the newer one at the end

Then we printed the list

Then we created a new cell

Then we inserted the new cell at the head of the list

Then we printed the list

Here’s what you MUST do for homework for Thursday, October 5th

• SUBMIT these as yourname12 and yourname13
• Create a similar program only put the third node between the first two (yourname12.adb)
• Create a similar program only put the third node at the end of the list (yourname13.adb)

NOTE:

• Since they are single .adb files you do NOT have to zip them. Please do NOT zip them. Submit them as two separate .adb files. Thank you
• Please pay particular attention to the comments in the code I asked you to study. Your program should have similar comments (type of comment and number of comments)

Here’s what you SHOULD do

Insert things in a 4 or 5 element list in different places and print the lists

NOTE:

• We only needed a single extra pointer to print the lists.
• When you want to insert things in the middle of a list you need two pointers (previous and current) in order to be able to insert things in the correct place.