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Keep track of the number of times the
target item (target) is found in the list.
Set the loop counter (n) to 1 to access
the first element in the list.

Start a loop to search for the target item.

If the current list item equals the target
item, increment itemCount by 1.
Increment the loop counter to access the
next element.

Figure 9-22: Counting how many times an item appears in a list

The target parameter represents the item to search for, while the
itemCount variable tracks the number of times the target item is found.
The procedure starts by setting itemCount to 0, and then it starts a repeat
loop to search the list for the value specified in target. During each itera-
tion of the loop, the procedure checks the list item at the location indexed
by the loop counter, n. If that item equals the target, the script increases
itemCount by 1.
To give the principal information about disgust with the cafeteria’s
food, we just need to call GetItemCount with an argument of 1, as shown
in Figure 9-23.

Figure 9-23: Using the GetItemCount procedure

try it out 9-6
After you provide the answer to this question, the principal suddenly becomes curi-
ous about how many students gave the cafeteria an excellent rating . The principal
also wants to know how many students participated in the survey . Modify the pro-
gram and run it again to give the principal the additional information .

228 Chapter 9
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