CIS22B - Review Session 4

Review Session 4

Note: Saturday's Review Session is NOT cancelled

Recording

Example

Arrays

What is an array?
What is so special about an array?
How big is an array?

The sizeof operator

Indexing

The index operator

Arrays and for loops
Pass an array to a function

An array's name is its address

Why is it common to pass the size of an array along with the array to a function?

Practice Exercise 4

Email only the source code for each practice exercise as an email attachment. There is no due date. Use "Practice Exercise 4" as the email subject. Add (a) comment(s) at the top of your program with your name, practice exercise 4, your compiler and operating system.

Complete the following program. You will need to write 3 functions:

populate assigns a random number between 1 and 100 to each element of the array
print prints each element of the array in a left justified field of width 3
indexOfMaxValue returns the index of the maximum element in the array.

const int ArraySize = 20;

int main()
{
    int a[ArraySize];
    populate(a);
    print(a);
    cout << "The maximum value is " << a[indexOfMaxValue(a)];
}

The output should look something like this:

42 68 35 1 70 25 79 59 63 65 6 46 82 28 62 92 96 43 28 37
The maximum value is 96