CountCharactersInFile.java

package misc;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;

public class CountCharactersInFile {

	public static void main(String[] args) throws IOException {
		File file = new File("file.txt");
		FileInputStream fis = new FileInputStream(file);
		InputStreamReader input = new InputStreamReader(fis);
		BufferedReader reader = new BufferedReader(input);
		
		String line;
		int countWord = 0;
		int sentenceCount = 0;
		int characterCount = 0;
		int paragraphCount = 1;
		int whitespaceCount = 0;
		
		while((line = reader.readLine()) != null) {
			if(line.equals("")) {
				paragraphCount++;
			}
			if(!(line.equals(""))) {
				characterCount += line.length();
				String[] wordList = line.split("\\s+");
				countWord += wordList.length;
				whitespaceCount += countWord - 1;
				String[] sentenceList = line.split("[!?.:]+");
				sentenceCount += sentenceList.length;
			}
		}
		System.out.println("Total word count = " + countWord); 
        System.out.println("Total number of sentences = " + sentenceCount); 
        System.out.println("Total number of characters = " + characterCount); 
        System.out.println("Number of paragraphs = " + paragraphCount); 
        System.out.println("Total number of whitespaces = " + whitespaceCount); 

	}

}