ShowPrice100.java

//Java程式
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package com.sample;

import java.io.File;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author 郭翔宇
 */
public class ShowPrice100 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here

        try {
            int count = 0;
            File file = new File("data.txt");
            Scanner scanner = new Scanner(file);
            String input = "";
            while (scanner.hasNext()) {
                count = count + 1;
                System.out.printf("%04d.\t", count);
                input = scanner.nextLine();
                String input2[] = input.split(" ");
                for (int i = 0; i < 5; i++) {
                    System.out.printf("%.0f\t", Double.parseDouble(input2[i]));
                }
                System.out.printf("\n");
            }
            scanner.close();
        } catch (Exception ex) {
            System.out.println(ex);
            Logger.getLogger(ShowPrice100.class.getName()).log(Level.SEVERE, null, ex);
        }
    }

}

/*
data.txt

200306030 37.1 37.4 36.92 37.08
20030701 37.09 38.1 37.09 38.05
20030702 38.17 38.82 38.1 38.69
20030703 40.6 40.6 38.81 39
20030704 39.1 39.26 38.75 39.26
201901018 75.75 76.1 75.4 75.95
201901021 76.35 76.7 76.25 76.5
201901021 76.35 76.7 76.25 76.5
201901021 76.35 76.7 76.25 76.5
201901021 76.35 76.7 76.25 76.5
*/

/*
Mion He
5 小時
請教各位前輩，我用java 8在class建立了二為陣列:3867列，5欄，可是為什麼印出陣列長度卻只有1002?
跑迴圈時用length只能印出一部分資料，設定長度時也只印一部分且出現C:\\Users\\user\\AppData\\Local\\NetBeans\\Cache\\8.2\\executor-snippets\\run.xml:53: Java returned: 1。
想請問前輩們這是發生什麼事?
https://www.facebook.com/groups/1403852566495675/permalink/2265069293707327/
 */