/*
 * Example of Scanner
 * Be notified that class Scanner is in java.util
 * Scanner can be used to read from a file, but NOT for Writing
 */

import java.util.*;
import java.io.*; // Because class File will be used...

class Scanner_file{

	public static void main(String args[]) {

		try{
			//* >>> Read a file that delimited by space >>> afile contains some information
			Scanner sc = new Scanner(new File("afile.txt"));
			String s = "";

			while(sc.hasNext()){

				s = sc.next();
				//s = sc.nextLine(); // >>> use nextLine() to read a line each time
				System.out.println(s);

			}//while

			sc.close();
			//*/

			/* >>> Read a String that delimited by string or symbol insted of space
			String input = "1 little, 2 little, 3 little, Indians";
			//Scanner sc = new Scanner(input).useDelimiter("\\s*little\\s*"); // >>>  \s means white space, * means zero or more times >>> then you don't need to use trim()
			Scanner sc = new Scanner(input).useDelimiter(","); // try little >>> use trim() to get rid of the spaces aside
			while(sc.hasNext()){
				System.out.println(sc.next().trim());
			}//while
			sc.close();
			//*/

			/* >>> Read a file with variable type >>> bfile contains integers
			Scanner sc = new Scanner(new File("ifile.txt"));
			int i;
			int sum = 0;
			while(sc.hasNextInt()){
				i = sc.nextInt();
				System.out.println("i = " + i);
				sum += i;
			}//while
			sc.close();
			System.out.println("sum = " + sum);
			// Try also hasNextBoolean(), hasNextByte(), hasNextDouble(), hasNextFloat(), hasNextLong, hasNextShort()*/
			// In corresponding with nextBoolean(), nextByte(), nextDouble(), nextFloat(), nextLing, nextShort()


		}catch(Exception e) {


		}//catch

	}//main

}//Scanner_file