首先，我已经说过我对这一切都是新手，所以请对我放轻松。
我的任务是创建一个名为的方法loadLeague()，尽管我付出了很多努力，但事实证明它非常艰难！我想知道你是否可以帮助我。任务本身与足球联赛表有关。我的方法编译没有任何问题，但随后它在 Main（或任何其他标准输出）上输出“InputMismatchException”错误。我真的把头发扯掉了（好吧，还剩下什么），我想知道我做错了什么，因为我已经阅读了所有关于 Java 的书！请各位可爱的专家看看我下面的代码，并指出我正确的方向吗？
谢谢一群人！！
PS 我只想对这个论坛说声谢谢，因为它帮助我找到了我在 IT 领域的第一份真正的工作。我很少在这里发表评论或提问，但我每天晚上都会阅读其他人提出的评论和问题，这些对我的采访很有帮助。所以非常感谢你！
import java.io.*;
import java.util.*;
/**
* Class League - An instance of this class represents the teams in a
* football (or similar) league. It provides a class method for creating
* a new instance of League by reading the data for the teams from a CSV
* file.
*
* @author Lewis Jones
* @version 1.0
*/
public class League
{
/* instance variables */
private String name; // The name of the league
private Team[] teams; // An array to hold the teams in the league
/**
* Constructor for objects of class League. It sets the name of the league
* to the String object provided as the first argument and initialises teams
* to an array of the size provided as the second argument. This constructor
* is private as it is intended for use only by the class method loadLeague().
*/
private League(String aName, int size)
{
super();
this.name = aName;
this.teams = new Team[size];
}
/* class method */
/**
* This method creates a new League object by reading the required details from
* a CSV file. The file must be organised as follows:
* name(String), number of teams (int)
* team name(String), won(int), drawn(int), lost(int), for(int), against (int)
* and so on for each team
* Having created the new League object the method should create all the Team
* objects (using the data in the file to set their attributes) and add them
* to the teams array.
*/
public static League loadLeague()
{
League theLeague = null;
String pathname = OUFileChooser.getFilename();
File aFile = new File(pathname);
Scanner bufferedScanner = null;
try
{
String leagueName;
int numberOfTeams;
String teamName;
int won;
int drawn;
int lost;
int goalsFor;
int goalsAgainst;
Scanner lineScanner;
String currentLine;
bufferedScanner = new Scanner(new BufferedReader(new FileReader (aFile)));
while (bufferedScanner.hasNextLine())
{
currentLine = bufferedScanner.nextLine();
lineScanner = new Scanner(currentLine);
lineScanner.useDelimiter(",");
leagueName = bufferedScanner.next();
numberOfTeams = bufferedScanner.nextInt();
teamName = bufferedScanner.next();
won = lineScanner.nextInt();
drawn = lineScanner.nextInt();
lost = lineScanner.nextInt();
goalsFor = lineScanner.nextInt();
goalsAgainst = lineScanner.nextInt();
Team aTeam = new Team(lineScanner.next());
aTeam.setWon(lineScanner.nextInt());
aTeam.setDrawn(lineScanner.nextInt());
aTeam.setLost(lineScanner.nextInt());
aTeam.setGoalsFor(lineScanner.nextInt());
aTeam.setGoalsAgainst(lineScanner.nextInt());
Team[] teams = new Team[numberOfTeams];
teams[numberOfTeams] = aTeam;
numberOfTeams++;
theLeague = new League(leagueName, numberOfTeams);
}
}
catch (Exception anException)
{
System.out.println("Error: " + anException);
}
finally
{
try
{
bufferedScanner.close();
}
catch (Exception anException)
{
System.out.println("Error: " + anException);
}
}
return theLeague;
}
/* instance methods */
/**
* Displays the league table in tabular format to the standard output
*/
public void display()
{
System.out.println(this.name);
System.out.format("%20s %2s %2s %2s %2s %2s %2s % 2s\n","","P","W","L","D","F","A","Pt");
for (Team eachTeam : this.teams)
{
System.out.format("%20s %2d %2d %2d %2d %2d %2d %2d\n",
eachTeam.getName(), eachTeam.getPlayed(),
eachTeam.getWon(), eachTeam.getDrawn(),
eachTeam.getLost(),eachTeam.getGoalsFor(),
eachTeam.getGoalsAgainst(), eachTeam.getPoints());
}
}
/**
* Arrange the elements of teams in their natural order. This will only
* work if a natural order has been defined for the class Team.
*/
public void sort()
{
// to be written later...
}
}
编辑：下面是这个任务附带的示例（输入）文件。我很抱歉。昨晚我完全忘记在我的帖子中包含这个。
Scottish League Division 1,10
Airdrie United ,3,2,11,14,25
Clyde ,5,7,4,21,17
Dundee ,7,2,7,21,18
Gretna ,10,3,3,43,20
Hamilton Acas ,7,5,4,19,20
Livingstone ,6,6,4,21,15
Partick Thistle,8,4,4,25,29
Queen of South ,3,3,10,11,31
Ross County ,4,4,8,14,24
St Johnstone ,6,6,4,26,16