Chapter 5, Problem 6PE

Explanation of Solution

Method for returning count of all vowels in a string

public static int count_vowels (String str)

{

    //declare variable count

    int count = 0;

    //execute for loop

    for (int i=0; i<str.length(); i++)

    {

        //if condition

if(str.charAt(i)=='a' || str.charAt(i)=='e' || str.charAt(i)=='i' || str.charAt(i)=='o' || str...