我应该打印出我刚刚从文本文件中读取的信息，而我实际打印的内容都是“空”和零。
这是我的文本文件的样子
1995 Jun 987 65 Allison
1995 Jul 973 85 Erin
1995 Aug 929 120 Felix
1995 Aug 968 95 Humberto
1995 Aug 965 95 Iris
1995 Aug 945 130 Luis
1995 Sep 949 100 Marilyn
1995 Sep 987 65 Noel
1995 Sep 916 130 Opal
1995 Oct 956 100 Roxanne
1995 Oct 972 75 Tanya
1996 Jul 960 100 Bertha
1996 Jul 985 75 Cesar
1996 Aug 989 70 Dolly
1996 Aug 933 125 Edouard
1996 Aug 946 105 Fran
1996 Sep 935 120 Hortense
1996 Sep 960 100 Isidore
1996 Oct 960 100 Lili
1996 Nov 983 65 Marco
1997 Jul 986 65 Bill
1997 Jul 984 70 Danny
1997 Sep 946 110 Erika
1998 Aug 954 100 Bonnie
1998 Aug 960 70 Danielle
1998 Aug 985 80 Earl
1998 Sep 937 135 Georges
1998 Sep 975 80 Ivan
1998 Sep 969 90 Jeanne
1998 Sep 970 90 Karl
1998 Oct 995 65 Lisa
1998 Oct 905 155 Mitch
1998 Nov 979 75 Nicole
1999 Aug 944 125 Bret
1999 Aug 942 120 Cindy
1999 Aug 962 90 Dennis
1999 Sep 921 135 Floyd
1999 Sep 930 130 Gert
1999 Oct 958 95 Irene
1999 Oct 979 85 Jose
1999 Nov 933 135 Lenny
2000 Aug 950 110 Alberto
2000 Aug 991 75 Debby
2000 Sep 985 70 Florence
2000 Sep 981 70 Gordon
2000 Sep 943 120 Isaac
2000 Sep 975 80 Joyce
2000 Sep 939 120 Keith
2000 Oct 965 85 Michael
2001 Sep 968 105 Erin
2001 Sep 962 100 Felix
2001 Sep 975 70 Gabrielle
2001 Sep 970 90 Humberto
2001 Oct 948 125 Iris
2001 Oct 982 70 Karen
2001 Oct 933 120 Michelle
2001 Nov 986 65 Noel
2001 Nov 973 80 Olga
2002 Sep 960 80 Gustav
2002 Sep 934 110 Isidore
2002 Sep 980 75 Kyle
2002 Sep 938 125 Lili
2003 Jul 979 80 Claudette
2003 Jul 1000 65 Danny
2003 Aug 986 65 Erika
2003 Aug 939 125 Fabian
2003 Sep 915 145 Isabel
2003 Sep 969 90 Juan
2003 Sep 952 110 Kate
2004 Jul 957 105 Alex
2004 Aug 941 130 Charley
2004 Aug 964 95 Danielle
2004 Aug 935 125 Frances
2004 Aug 985 65 Gaston
2004 Sep 910 145 Ivan
2004 Sep 950 105 Jeanne
2004 Sep 938 125 Karl
2004 Sep 987 65 Lisa
2005 Jul 991 65 Cindy
2005 Jul 930 130 Dennis
2005 Jul 929 140 Emily
2005 Aug 970 90 Irene
2005 Aug 902 150 Katrina
2005 Sep 962 100 Maria
2005 Sep 979 80 Nate
2005 Sep 976 75 Ophelia
2005 Sep 985 70 Philippe
2005 Sep 895 155 Rita
2005 Oct 977 70 Stan
2005 Oct 988 65 Vince
2005 Oct 882 160 Wilma
2005 Oct 962 100 Beta
2005 Nov 981 75 Epsilon
2006 Aug 992 65 Ernesto
2006 Sep 974 80 Florence
2006 Sep 955 105 Gordon
2006 Sep 955 105 Helene
2006 Sep 985 75 Isaac
2007 Aug 905 150 Dean
2007 Aug 929 150 Felix
2007 Sep 985 80 Humberto
2007 Sep 988 65 Karen
2007 Sep 990 70 Lorenzo
2007 Oct 980 70 Noel
2008 Jul 952 110 Bertha
2008 Jul 963 85 Dolly
2008 Aug 941 135 Gustav
2008 Aug 977 75 Hanna
2008 Sep 935 125 Ike
2008 Sep 984 70 Kyle
2008 Oct 958 115 Omar
2008 Nov 970 85 Paloma
2009 Aug 943 115 Bill
2009 Sep 958 105 Fred
2009 Nov 975 90 Ida
2010 Jun 946 95 Alex
2010 Aug 942 115 Danielle
2010 Aug 927 125 Earl
2010 Sep 924 135 Igor
2010 Sep 948 120 Julia
2010 Sep 956 110 Karl
2010 Sep 982 75 Lisa
2010 Oct 976 75 Otto
2010 Oct 981 90 Paula
2010 Oct 977 85 Richard
2010 Oct 989 65 Shary
2010 Oct 985 85 Tomas
2011 Aug 942 105 Irene
2011 Aug 942 120 Katia
2011 Sep 983 70 Maria
2011 Sep 994 65 Nate
2011 Sep 940 120 Ophelia
2011 Sep 976 80 Philippe
2011 Oct 966 100 Rina
2012 Jun 974 75 Chris
2012 Aug 973 85 Ernesto
2012 Aug 965 95 Gordon
2012 Aug 965 70 Isaac
2012 Aug 970 90 Kirk
2012 Aug 968 70 Leslie
2012 Sep 964 100 Michael
2012 Sep 978 80 Nadine
2012 Oct 969 80 Rafael
2012 Oct 940 100 Sandy
2013 Sep 979 80 Humberto
2013 Sep 983 75 Ingrid
2014 Jul 973 85 Arthur
2014 Aug 998 70 Bertha
2014 Aug 965 75 Cristobal
2014 Sep 955 105 Edouard
2014 Oct 983 70 Fay
2014 Oct 940 125 Gonzalo
2015 Aug 960 110 Danny
2015 Aug 986 75 Fred
2015 Sep 931 135 Joaquin
2015 Nov 980 75 Kate
预期输出
Year Name Pressure wind Speed
1995 Allison 987 65
1995 Erin, 973 85
1995 Felix 929 120
1995 Humberto 968 95
1995 Iris 965 95
1995 Luis 945 130
public class HurricaneSelector
{
public static void main(String[] args) throws IOException
{
Scanner in = new Scanner (System.in);
File fileName = new File ("hurricanedata.txt");
Scanner inFile = new Scanner(fileName);
int counter = 0;
while (inFile.hasNextLine())
{
inFile.nextLine();
counter++;
}
int [] year = new int[counter];
String [] month = new String[counter];
String [] name = new String[counter];
int [] pressure = new int[counter];
int [] windSpeed = new int[counter];
int index = 0;
while (inFile.hasNext())
{
year[index] = inFile.nextInt();
month[index] = inFile.nextLine();
pressure[index] = inFile.nextInt();
windSpeed[index] = inFile.nextInt();
name[index] = inFile.nextLine();
index++;
}
for (int n = 0; n < year.length; n++)
{
System.out.println(year[n] + " " + month[n] + " " + name[n] + " " + windSpeed[n]);
}
}
}
答案 0 :(得分：3)
while (inFile.hasNextLine())之后，文件流已用尽，需要从头开始重新读取。
您应该首先close文件，然后重新打开它。
inFile.close ();
inFile = new Scanner(fileName);