import java.io.BufferedReader;
import java.io.FileReader;
public class IOExamples {
    
    public static void main(String[] args) throws Exception {
        int charCount = 0;
        
        for (int timesToTry = 0;timesToTry < 3; timesToTry++) {
            long startTime = System.currentTimeMillis();
            
            
//        // unbuffered IO
//        FileReader fr = new FileReader("C:/Users/demo/TextTwist/src/WORD.LST");
//        for (int c = fr.read();c != -1;c = fr.read()) {
//            charCount++;
//        }
//        fr.close();
            
//        // unbuffered IO
//        FileReader fr = new FileReader("C:/Users/demo/TextTwist/src/WORD.LST");
//        char[] buffer = new char[5*1024];
//        for (int bytesRead = fr.read(buffer);bytesRead != -1;bytesRead = fr.read(buffer)) {
//            charCount += bytesRead;
//        }
//        fr.close();
            
//        // unbuffered IO with just bytse
//        FileInputStream fr = new FileInputStream("C:/Users/demo/TextTwist/src/WORD.LST");
//        byte[] buffer = new byte[5*1024];
//        for (int bytesRead = fr.read(buffer);bytesRead != -1;bytesRead = fr.read(buffer)) {
//            charCount += bytesRead;
//            for (int i=0;i<bytesRead;i++) {
//                char c = (char)buffer[i];
//            }
//        }
//        fr.close();
            
            
//            // unbuffered IO
//            FileReader fr = new FileReader("C:/Users/demo/TextTwist/src/WORD.LST");
//            BufferedReader br = new BufferedReader(fr);
//            char[] buffer = new char[5*1024];
//            for (int bytesRead = br.read(buffer);bytesRead != -1;bytesRead = br.read(buffer)) {
//                charCount += bytesRead;
//            }
//            fr.close();
            
            long stopTime = System.currentTimeMillis();
            System.out.println("Total Time: "+(stopTime-startTime)+"ms");
        }
        
        System.out.println("Chars Read: "+charCount);
        
    }
    
}