ITEC 120 2009spring ibarland nokie jmdymacek

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lect12b
arrays, cont.
looping over, allocating, passing

We will write methods for:

• Given an array of doubles and a threshhold x, count how many elements of the array (strictly) bigger than x.
  (solution)
• Given an array of doubles, find the maximum value.
  (The array's length is non-zero, as a pre-condition.)
  (solution)
• Given an array of doubles, find the index of the maximum value.
  (I.e. which month had the most rain?)
  (solution)

• On a different tack: Write a method which takes in an integer sz, and returns an array of sz doubles where each element has been initialized from the keyboard.

  We will draw memory diagrams of what goes on, when this method is called from another one.

  
  (solution)

  What additional argument might be good, to give to this method beyond sz? How about a string or two, indicating exactly how to prompt the user? As a user, how do you expect to be prompted, to read in 31 temperatures, or 8 pole-vault results, or …?

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©2009, Ian Barland, Radford University Last modified 2009.Apr.15 (Wed)

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