ParentClass

import java.io.*;
import java.io.FileNotFoundException;
import java.util.Scanner;

public class ParentClass{

public static void main(String[] args) {

    File file = new File("C:\\Java_Scratch\\someFile.txt");

    try {

        Scanner sc = new Scanner(file);

        try {
            Thread.sleep(5000);
        }
        catch(InterruptedException ie) {
            System.out.print(ie.getStackTrace()) ;

        }

        while (sc.hasNextLine()) {
            int i = sc.nextInt();
            System.out.println(i);
        }
        sc.close();
    }
    catch (FileNotFoundException e) {
        e.printStackTrace();
    }


   try  {
    int i = ParentClass.countLines("C:\\Java_Scratch\\someFile.txt");
   }
   catch (IOException ioe) {
    System.out.print("ioe" + ioe.getStackTrace() );
   }

 }


// putting the count function



public static int countLines(String filename) throws IOException {
    InputStream is = new BufferedInputStream(new FileInputStream(filename));


    try {
        byte[] c = new byte[1024];
        int count = 0;
        int readChars = 0;
        boolean empty = true;
        while ((readChars = is.read(c)) != -1) {
            empty = false;
            for (int i = 0; i < readChars; ++i) {
                if (c[i] == '\n') {
                    ++count;
                }
            }
        }
        return (count == 0 && !empty) ? 1 : count;
    } finally {
        is.close();
    }

}//END method countLines



 // end-count_func


}