
Explanation of Solution
averageVowels method
- The code is
// Declare method avarageVowels
public static double averageVowels(ArrayList strList)
{
// Define if condition
if(strList.isEmpty())
return 0.0;
// Define variable average
double average = 0.0;
// Define variable count
double count = 0;
// Execute for loop
for(int i = 0; i < strList.size(); i++)
{
//Define String
String str = strList.get(i);
// Execute for loop
for(int j = 0; j < str.length(); j++)
{
//Define character
char ch = Character.toLowerCase(str.charAt(j));
if(ch == 'a' || ch == 'e' || ch == 'i'
|| ch == 'o' || ch == 'u')
{
count++;
}
}
}
//Define average and return the variable
average = (double)count / strList.size();
return average;
}
- Here average number of vowel characters is returned.
- If an empty ArrayList is passed, then it returns 0.
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