CSV 文本过滤查询汇总计算

【问题】

I have a CSV File, The contents are like this:

Country,Player,Runs,ScoreRate,MatchDate,Weekday,Ground,Versus,URL

Afghanistan,Mohammad Shahzad,118,97.52,16-02-2010,Tue,Sharjah CA Stadium,Canada,../Matches/MatchScorecard_ODI.asp?MatchCode=3087

Afghanistan,Mohammad Shahzad,110,99.09,01-09-2009,Tue,VRA Ground,Netherlands,../Matches/MatchScorecard_ODI.asp?MatchCode=3008

Afghanistan,Mohammad Shahzad,100,138.88,16-08-2010,Mon,Cambusdoon New Ground,Scotland,../Matches/MatchScorecard_ODI.asp?MatchCode=3164

Afghanistan,Mohammad Shahzad,82,75.92,10-07-2010,Sat,Hazelaarweg,Netherlands,../Matches/MatchScorecard_ODI.asp?MatchCode=3153

I have to find the Total Scores by Afganisthan Player in the year 2010.

I wrote a code, But its shows and exception and outputs

java.lang.NumberFormatException: For input string: ""

    at java.lang.NumberFormatException.forInputString(Unknown