Question: Encapsulate this code in a function named countLetters, and generalize

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Question: Encapsulate this code in a function named countLetters, and generalize it so that it accepts the string and the letter as arguments. - Part 2: In another File rewrite this function so that instead of traversing the string, it uses the three-parameter version of find from the previous.
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The program code is below.
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The following program counts the number of times the letter a appears in a string:

fruit = "banana"
count = 0
for char in fruit:
   if char == ’a’:
      count = count + 1
print count
This program demonstrates another pattern of computation called a counter.
The variable count is initialized to 0 and then incremented each time an a is
found. (To increment is to increase by one; it is the opposite of decrement,
and unrelated to “excrement,” which is a noun.) When the loop exits, count
contains the result—the total number of a’s. Question: Encapsulate this code in a function named countLetters, and generalize it so that it accepts the string and the letter as arguments. - Part 2: In another File rewrite this function so that instead of traversing the string, it uses the three-parameter version of find from the previous.
--
The program code is below.
---
The following program counts the number of times the letter a appears in a string:

fruit = "banana"
count = 0
for char in fruit:
   if char == ’a’:
      count = count + 1
print count
This program demonstrates another pattern of computation called a counter.
The variable count is initialized to 0 and then incremented each time an a is
found. (To increment is to increase by one; it is the opposite of decrement,
and unrelated to “excrement,” which is a noun.) When the loop exits, count
contains the result—the total number of a’s.

Explanation / Answer

Part 1: Part 2 :

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