import java.io.File;
import java.io.IOException;
import java.util.Scanner;

public class FileReadSimple {

	public static void main(String[] args) {

		Scanner keyboard = new Scanner(System.in);
		
		System.out.print("Enter a filename: ");
		String filename = keyboard.nextLine();
		File file = new File(filename);
		
		try (Scanner fileIn = new Scanner(file)){
			int l = 0;
			while(fileIn.hasNextLine()) {
				String line = fileIn.nextLine();
				System.out.printf("%4d: %s\n", l, line);
				l++;
			}
		}
		catch(IOException ioe) {
			ioe.printStackTrace();
		}
		
		keyboard.close();
	}


}