ITEC 120 2010fall ibarland

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lect09a
while

We ended last time with:

    while (stu.creditHours < 120) {
      stu.takeCourseInteractive();
    }

Change this:

• Repeatedly get an A in a 3-hour course, until the gpa is ≥ 3.0.
  Try it on some different students. What is the most number of times this loop might run? What is the smallest number of times this loop might run?
• Update the code, to print out (for fun) how many 3-hour A's were taken before the gpa reached the desired point?
  (I can think of three different ways¹. We'll put some on the board.)
• A variable which keeps track of how many times you've been through the loop is called an index variable.
• We can use the index variable during our loop as well:
  Suppose the student cycles through getting A's, B's, and C's: How can we have this happen?
  Hint: %.
• Write a loop which prints the numbers from 0...up to (but not including) n.
The code we arrived at..

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©2010, Ian Barland, Radford University Last modified 2010.Oct.27 (Wed)

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