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Dec 1st, 2015
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Question description

Exercise #8:    Arrays

You must use one (or more) array(s) for each question.

Q. 1  Declare an array that can hold 25 decimals.  Fill (i.e., initialize) its first five elements with a loop using static values (e.g., array_name= 56.78).  Add all its elements using another loop.  Display the result (total) in a listbox. 

Using a “for each” loop, display all the elements in the listbox.  What do you notice?   NOTE:  As mentioned in the class, we have not been using first element.  You will notice that when you declare an array of 25 (e.g., Dim array_name(25) as…) you actually get 26 elements.  Remember that the first element is: array_name(0).  

Q.2  Declare an array that can hold 25 decimals.  Initialize its first three elements with a loop using inputboxes.  Multiply all these three elements using another regular “for” loop.  Display the result (of multiplication of the values you entered) in a listbox.  Make sure your result is non-zero.   HINTS:  (a) When an array element is not filled, it is 0 (b) When you multiply any number with a 0, you get a 0.  (c) Do not forget that you have 0th element to consider.

Q.3  Declare an array that can hold 10 strings.  Fill its first three elements with a regular “for” loop using inputboxes.  Then, using the “for each” loop, display all array elements in a listbox.

Q.4 Repeat Q.2:  This time, use the “for each” loop for total/multiplication.  HINTS for the multiplication result:  (a) “for each” loop takes ALL the element of an array.  (b) When an array element is not filled, it is 0 (c) When you multiply any number with a 0, you get a 0.  How do you avoid this problem?  See Q. 5.

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