title: enter a string from the keyboard and check how many vowels are available and extarct the middle character of the string
body: <p>The assignment asks that a method returns the value true if a given character is a vowel, and otherwise returns false. Then to test that method by asking the user for a String, and checking each characters of the String the user entered, returning true if vowel, and false if not. So far, I have created the method, and have created a loop to read through the String, but unfortunately it only checks the character the user initially inputted rather than the characters of the String.</p>
  
  <pre><code>import java.util.*;
  
  public class Vowels{
  
  public static void main(String[] args){
  
  Scanner keyboard = new Scanner(System.in);
  
  System.out.print("Enter a character: ");
  char ch = keyboard.next().charAt(0);
  
  boolean result = isVowel(ch);
  System.out.println(result);
  
  System.out.println("Please enter a String: ");
  String str = keyboard.next();
  
  boolean answer = isVowel(ch);
  for(int i = 0; i &lt;= str.length(); i++){
    if(str.charAt(i) == ch){
      answer = true;
      System.out.println(answer);
    }
    else{
      answer = false;
      System.out.println(answer);
    }
   }
  }
  
  public static boolean isVowel(char ch){
  boolean answer;
  if (ch == 'a' || ch == 'e' || ch == 'i' || ch == 'o' || ch == 'u'){
    answer = true;
    return answer;
  }
  else{
    answer = false;
    return answer;
    }
   }
  }
  </code></pre>