使用扫描仪读取文本文件

/*
 from N  o w  J a v a . c o m 
*/


import java.io.File;

import java.io.IOException;

import java.util.Scanner;


public class Part1 {

    public static void main(String[] args) throws IOException{ new Part1().start(); }

    public void start() throws IOException {

        File inFile = new File ("src/day04/input.txt");

        Scanner sc = new Scanner (inFile);


        while (sc.hasNext()) {

            String line = sc.nextLine();
/* from nowjava - 时代Java*/

            System.out.print( line.substring(0, (line.indexOf('[')-3) ) +"  :  ");

            System.out.print( line.substring((line.indexOf('[')-3), line.indexOf('[') ) +