I have the following code but i want to add a function which will allow
me to count the number of vowels in the text file. I was wondering if
anyone would be willing to give me some help with this

[CODE]
import java.io.*;
import java.util.*;
public class App {
//Create BufferedReader class instance
public static InputStreamReader input = new
InputStreamReader(System.in);
public static BufferedReader keyboardInput = new BufferedReader
(input);
public static void main(String[] args) {
 int[] lengths = new int[100]; //Runtime error if the file contains a
word of more than 100 characters
 int longestWord = 0;
        for(int i = 0; i < lengths.length; i++) {
  lengths[i] = 0;
 }
 try {
  System.out.println("Enter the name of the file you wish to read:
");
  String fileName = keyboardInput.readLine();
  FileReader file = new FileReader(new File(fileName));
  BufferedReader myFile = new BufferedReader(file);
  int numTokens = 0;
  int numWords = 0;
  int numChar= 0;
  String line;
  while ((line = myFile.readLine()) != null ) {
    String[] words = line.split(" ");
    numWords = numWords + words.length;
    for (int i = 0; i < words.length;i++) {
    numChar = numChar + words[i].length();
    if(words[i].length() > longestWord) {
     longestWord = words[i].length();
    }
    lengths[words[i].length()] = lengths[words[i].length()] + 1;
    }
  }
  System.out.println("\nThere are " + numWords + " words in the text
file");
  System.out.println("\nThere are " + numChar + " characters in the
text file");
  System.out.println("\nThere length frequency of the words is as
follows:");
  System.out.println("\nLength   :  Frequency ");
  for(int i = 0; i <= longestWord; i++) { //Print frequencies only up
to the longest word
    System.out.println(i + "    :"+lengths[i]);
  }
  myFile.close();
 }
 catch(IOException iO) {
  iO.printStackTrace();
 }
}
}
[/CODE]