Thread: Counting Vowels and Prepositions in a text file

Hi,
I wanted help implementing how to count vowels and preposition in a text file..this is what i have for counting words, the other are blank because i simply can't get it to work..Help is greatly welcomed..

import java.io.*;
 
public class FileIO {
 
	public static void main(String[] args) throws IOException {
 
		countWords();
		countVowels();
		countPrepositions();
	}
 
	public static void countWords() throws IOException {
		FileReader fr = new FileReader(
				"G:\\Java 1302\\project\\FILEIO\\src\\input.txt");
		BufferedReader br = new BufferedReader(fr);
		StreamTokenizer stz = new StreamTokenizer(br);
 
		int index = 0;
		int numWords = 0;
 
		while (index != StreamTokenizer.TT_EOF) {
			index = stz.nextToken();
			numWords++;
		}
		System.out.println("number of words in file = " + numWords);
	}
 
	public static void countVowels() throws IOException {
 
	}
 
	public static void countPrepositions() throws IOException {
		System.out.println("number of prepositions in the file =");
	}
}

Originally Posted by JavaPF

Please show me the text file you will be using..

I probably wouldn't use the StreamTokenizer.

I would read in the file like this: http://www.javaprogrammingforums.com...ner-class.html

And put each word into an array... You can then loop through the array to find you answers

Let me know if you need help and I will write an example..

hey i go it to work, but the problem is printing the outputs to the source file and counting preposition...
do u know how i could go about counting prepositions..this is my code for counting vowels, however, it's not writing to my output file...help

public class FileIO {
	private static FileReader inputStream = null;
	private static FileWriter outputStream = null;
 
	public static void main(String[] args) throws Exception {
		countWords();
}
 
	public static void countVowels() throws IOException {
		try {
			inputStream = new FileReader(
					" input.txt");
			outputStream = new FileWriter(
					"output.txt");
 
			BufferedReader br = new BufferedReader(inputStream);
			int numOfVowels = 0;
			String lineRead;
 
			while ((lineRead = br.readLine()) != null) {
				for (int i = 0; i < lineRead.length(); i++) {
					char c = lineRead.charAt(i);
					if (c == 'a' || c == 'A' || c == 'e' || c == 'E'
							|| c == 'i' || c == 'I' || c == 'o' || c == 'O'
							|| c == 'u' || c == 'U') {
						numOfVowels++;
					}
				}
			}
			// display on console word count
			System.out.println("number of vowels in file = " + numOfVowels);
			// print into new file
			outputStream.write("number of vowels in file = " + "\n"
					+ numOfVowels + "\n");
		} catch (ArrayIndexOutOfBoundsException e) {
			System.err.println("Caught " + "ArrayIndexOutOfBoundsException: "
					+ e.getMessage());
 
		} catch (IOException e) {
			System.err.println("Caught IOException: " + e.getMessage());
 
			if (inputStream != null) {
				inputStream.close();
			}
			if (outputStream != null) {
				outputStream.close();
			}
		}
	}
 
public static void countPrepositions() throws IOException {
//what should I write in here? Am stuck
		System.out.println("number of prepositions in the file =");
	}
}

my input file says

Hello my name is bondgirl.
I am 21.

thanks again

Originally Posted by JavaPF

Please show me the text file you will be using..

I probably wouldn't use the StreamTokenizer.

I would read in the file like this: http://www.javaprogrammingforums.com...ner-class.html

And put each word into an array... You can then loop through the array to find you answers

Let me know if you need help and I will write an example..

yes could you please write an example..? thanks again