讀取文件時輸入不匹配異常

到目前爲止，這是我的代碼。我正在嘗試將文本文件讀入我的演示程序，並將每行分別讀入另一個類。無論出於什麼原因，代碼都會在第一行和下一行之間添加一條空行，這將導致我的程序失敗，因爲nextInt（）命令由於空行而讀取一個字符串。任何幫助將不勝感激。多謝你們。讀取文件時輸入不匹配異常

文本文件：

David Wise 
USA 
SKI HALFPIPE MENS 
1 
Mike Riddle 
Canada 
SKI HALFPIPE MENS 
2 
Kevin Rolland 
France 
SKI HALFPIPE MENS 
3 
Maddie Bowman 
USA 
SKI HALPIPE WOMENS 
1 
Marie Martinod 
France 
SKI HALPIPE WOMENS 
2 
Ayana Onozuka 
Japan 
SKI HALPIPE WOMENS 
3 
Felix Loch 
Germany 
LUGE SINGLE MENS 
1 
Albert Demchenko 
Russia 
LUGE SINGLE MENS 
2 
Armin Zoeggeler 
Italy 
LUGE SINGLE MENS 
3 
Natalie Geisenberger 
Germany 
LUGE SINGLE WOMENS 
1 
Tatjana Huefner 
Germany 
LUGE SINGLE WOMENS 
2 
Erin Hamlin 
USA 
LUGE SINGLE WOMENS 
3 
Alexander Tretiakov 
Russia 
SKELETON MENS 
1 
Martins Dukurs 
Latvia 
SKELETON MENS 
2 
Mathew Antoine 
USA 
SKELETON MENS 
3 
Elizabeth Yarnold 
United Kingdom 
SKELETON WOMENS 
1 
Noelle Pikus-Pace 
USA 
SKELETON WOMENS 
2 
Elena Nikitina 
Russia 
SKELETON WOMEN 
3 
Michel Mulder 
Russia 
500M SPEED SKATING MENS 
1 
Jan Smeekens 
Russia 
500M SPEED SKATING MENS 
2 
Ronald Mulder 
Russia 
500M SPEED SKATING MENS 
3

演示程序：

import java.io.*; 
import java.util.*; 
import ch06.lists.*; 
import support.*; 

public class OlympicDemo 
{ 
    public static void main(String[] args) 
    { 
    ListInterface<String> list = new ArrayIndexedList<String>(); 
    final String FILEINNAME = "src/AthleteInformation.txt"; 

    String name = ""; 
    String country = ""; 
    String event = ""; 
    int rank = 0; 

    Athlete athletes; 
    OlympicAthletes olympic; 

    try 
    { 
     FileReader file = new FileReader(FILEINNAME); 
     Scanner ath = new Scanner(file); 

     while(ath.hasNext()) 
     { 
      name = ath.nextLine(); 
      System.out.println(name); 
      country = ath.nextLine(); 
      System.out.println(country); 
      event = ath.nextLine(); 
      System.out.println(event); 
      rank = ath.nextInt(); 
      System.out.println(rank); 

      athletes = new Athlete(name, country, event, rank); 
     } 
    } 
    catch(FileNotFoundException e) 
    { 
     System.out.println("FILE: " + FILEINNAME + " DOES NOT EXIST"); 
    } 

    /** 
    try 
    { 
     ObjectInputStream in = new ObjectInputStream(new 
       FileInputStream(FILEINNAME)); 

     athletes = (Athlete)in.readObject(); 
    } 
    catch(Exception e) 
    { 
     System.out.println("FILE: " + FILEINNAME + " DOES NOT EXIST"); 
    } 
    */ 
    } 
}

OUTPUT：

David Wise 
USA 
SKI HALFPIPE MENS 
1 

Mike Riddle 
Canada 
Exception in thread "main" java.util.InputMismatchException 
    at java.util.Scanner.throwFor(Unknown Source) 
    at java.util.Scanner.next(Unknown Source) 
    at java.util.Scanner.nextInt(Unknown Source) 
    at java.util.Scanner.nextInt(Unknown Source) 
    at OlympicDemo.main(OlympicDemo.java:34)

來源

2014-11-22 Deigs

在閱讀與.nextInt()整型，而光標剛INT後，還沒有在下一個新行。因此，在那個時候調用.nextLine()只會給你一個空字符串。

用nextInt()讀取整數後，請在讀取下一個人的姓名之前，將光標放在正確的位置。

來源

2014-11-22 23:36:22 Anne

工作過，非常感謝您的幫助！ – Deigs 2014-11-23 00:22:30

讀取文件時輸入不匹配異常

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