我正在尝试从.txt创建不同类型的数组（String，int ...），但我会立即面对错误消息。
Exception in thread "main" java.util.InputMismatchException
at java.util.Scanner.throwFor(Scanner.java:864)
at java.util.Scanner.next(Scanner.java:1485)
at java.util.Scanner.nextInt(Scanner.java:2117)
at java.util.Scanner.nextInt(Scanner.java:2076)
at javaapplication12.JavaApplication12.main(JavaApplication12.java:27)
Java Result: 1
这是我的代码：
package javaapplication12;
import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;
public class JavaApplication12 {
public static int num = 128;
public static String[] name = new String[num];
public static int[] id = new int[num];
public static int[] year = new int[num];
public static double[] price = new double[num];
public static int[] sh = new int[num];
public static int[] row = new int[num];
public static int[] col = new int[num];
public static void main(String[] args) throws FileNotFoundException {
File inputFile = new File("Store.txt");
Scanner fin = new Scanner(inputFile);
fin.nextLine();
fin.nextLine();
while (fin.hasNext()) {
for (int i = 0; i < num; i++) {
name[i] = fin.next();
id[i] = fin.nextInt();
fin.next();
fin.next();
fin.next();
fin.next();
fin.next();
year[i] = fin.nextInt();
price[i] = fin.nextDouble();
sh[i] = fin.nextInt();
row[i] = fin.nextInt();
col[i] = fin.nextInt();
}
}
fin.close();
}
}
我不明白为什么会发生这种情况，因为我不熟悉编码。感谢。
以下是我正在使用的表格：
Name ID Date in Price S R C
______________________________________________________________________________
Saw 562 SAT SEP 30 00:00:00 AST 1950 37.00 2 13 1
Tape Measure 955 TUE AUG 27 00:00:00 AST 1918 52.00 13 4 4
Knife 25 TUE MAR 14 00:00:00 AST 2000 31.00 9 15 7
Chisel 911 WED NOV 18 00:00:00 AST 1992 83.00 6 15 3
Ruler 837 WED APR 19 00:00:00 AST 1978 32.00 13 13 4
file 797 MON MAY 07 00:00:00 AST 1934 46.00 13 7 0
Brush 190 MON SEP 07 00:00:00 AST 1959 48.00 7 3 15
Scraper 619 WED MAR 14 00:00:00 AST 1900 36.00 3 0 0
Level 369 SAT MAR 08 00:00:00 AST 1919 78.00 15 9 6
Vise 487 THU OCT 06 00:00:00 AST 1904 32.00 5 3 13
Vise 403 FRI JAN 02 00:00:00 AST 1931 87.00 10 12 2
Brush 683 WED JUL 17 00:00:00 AST 1974 74.00 6 11 5
Brush 821 THU DEC 26 00:00:00 AST 1929 44.00 12 6 10
Screw Driver 246 WED SEP 03 00:00:00 AST 1947 8.00 12 0 1
Knife 296 TUE FEB 10 00:00:00 AST 1914 72.00 9 2 0
Knife 895 SUN MAY 17 00:00:00 AST 1903 38.00 0 8 7
Hammer 213 SUN MAY 05 00:00:00 AST 2013 51.00 6 8 12
Ruler 47 MON JUN 03 00:00:00 AST 1918 42.00 3 0 1
Chisel 958 FRI OCT 09 00:00:00 AST 1981 70.00 5 7 8
file 279 WED JAN 20 00:00:00 AST 1999 95.00 6 1 9
Knife 90 FRI JAN 20 00:00:00 AST 2012 92.00 10 6 0
Sand Paper 642 SUN FEB 23 00:00:00 AST 1975 6.00 6 8 0
Vise 410 MON MAR 25 00:00:00 AST 1957 74.00 8 11 1
file 856 MON MAY 09 00:00:00 AST 2011 20.00 12 6 8
file 581 MON AUG 04 00:00:00 AST 1930 18.00 5 11 0
Knife 287 WED FEB 04 00:00:00 AST 1970 96.00 15 13 10
Wrench 905 SUN FEB 07 00:00:00 AST 1999 32.00 2 0 0
Tape Measure 744 THU JAN 26 00:00:00 AST 1939 77.00 4 13 4
Sand Paper 306 TUE JUN 07 00:00:00 AST 1960 82.00 1 15 5
Brush 901 TUE FEB 08 00:00:00 AST 2000 59.00 6 10 13
Ruler 180 FRI OCT 18 00:00:00 AST 1907 72.00 10 11 7
Chisel 633 TUE FEB 22 00:00:00 AST 1916 55.00 9 5 5
Tape Measure 698 WED DEC 14 00:00:00 AST 1938 8.00 12 10 6
Wrench 315 THU OCT 22 00:00:00 AST 1925 17.00 0 0 1
Pliers 912 TUE MAR 08 00:00:00 AST 1904 9.00 8 5 7
Hammer 216 SAT JUN 27 00:00:00 AST 1914 9.00 1 6 4
Vise 976 SUN OCT 04 00:00:00 AST 1998 70.00 15 9 0
Chisel 884 THU APR 11 00:00:00 AST 1901 52.00 10 15 5
Saw 980 SAT FEB 22 00:00:00 AST 1941 16.00 13 13 11
Ruler 796 FRI SEP 11 00:00:00 AST 1998 88.00 5 4 15
Scraper 313 SUN FEB 02 00:00:00 AST 1919 31.00 14 8 7
file 885 SAT NOV 13 00:00:00 AST 1965 25.00 7 6 12
Knife 752 TUE OCT 25 00:00:00 AST 1983 60.00 5 11 7
Knife 470 FRI JUN 07 00:00:00 AST 1957 56.00 6 12 8
Hammer 148 SUN FEB 28 00:00:00 AST 1965 63.00 5 8 14
file 974 THU OCT 14 00:00:00 AST 1993 90.00 1 6 12
Chisel 434 MON OCT 06 00:00:00 AST 1930 94.00 0 5 5
Hammer 709 FRI SEP 14 00:00:00 AST 1945 3.00 7 6 4
Pliers 594 SAT MAY 25 00:00:00 AST 1968 19.00 2 7 11
Hammer 120 TUE AUG 07 00:00:00 AST 1979 40.00 3 10 2
Ruler 396 SAT MAR 21 00:00:00 AST 1981 42.00 5 7 9
Hammer 874 FRI MAR 22 00:00:00 AST 1935 82.00 4 8 8
Chisel 182 SAT NOV 30 00:00:00 AST 1985 86.00 12 7 5
Hammer 976 SUN MAR 09 00:00:00 AST 1919 83.00 11 14 0
Tape Measure 750 FRI JUL 09 00:00:00 AST 1920 23.00 2 1 6
Tape Measure 776 MON JUN 01 00:00:00 AST 1998 21.00 11 3 7
Hammer 870 THU DEC 23 00:00:00 AST 1993 62.00 10 11 11
Screw Driver 943 FRI FEB 28 00:00:00 AST 1997 84.00 10 1 13
Hammer 689 WED FEB 28 00:00:00 AST 1934 82.00 11 8 10
Brush 816 SAT JAN 31 00:00:00 AST 1953 51.00 1 4 14
Scraper 500 THU SEP 24 00:00:00 AST 1931 55.00 6 5 12
Ruler 686 THU MAY 14 00:00:00 AST 1987 17.00 13 6 8
Brush 675 FRI JUN 09 00:00:00 AST 1922 39.00 7 0 9
Sand Paper 938 SAT AUG 15 00:00:00 AST 1959 18.00 6 5 15
Vise 904 WED OCT 01 00:00:00 AST 1986 35.00 12 4 15
Level 455 FRI DEC 06 00:00:00 AST 1957 42.00 14 13 1
Knife 999 MON MAR 24 00:00:00 AST 1930 25.00 0 0 4
Scraper 94 MON NOV 05 00:00:00 AST 1951 22.00 8 2 4
Saw 473 MON SEP 18 00:00:00 AST 1961 30.00 1 9 13
Saw 140 THU JAN 27 00:00:00 AST 1921 3.00 13 2 0
Tape Measure 401 THU AUG 22 00:00:00 AST 1985 81.00 1 4 3
Screw Driver 923 WED JAN 26 00:00:00 AST 2005 35.00 3 14 2
Allen Key 87 THU JUL 11 00:00:00 AST 2013 10.00 6 4 1
Wrench 917 TUE SEP 23 00:00:00 AST 1969 35.00 12 14 8
Wrench 367 MON AUG 05 00:00:00 AST 1929 99.00 6 3 13
Saw 484 SAT JUN 12 00:00:00 AST 1926 36.00 10 8 8
Screw Driver 816 WED JUL 27 00:00:00 AST 1927 13.00 13 1 0
Ruler 476 TUE DEC 25 00:00:00 AST 1945 92.00 11 6 4
Brush 762 FRI FEB 19 00:00:00 AST 1937 50.00 2 3 9
Screw Driver 332 TUE SEP 06 00:00:00 AST 2011 60.00 11 7 12
Level 849 WED AUG 25 00:00:00 AST 1937 82.00 2 6 6
Knife 812 TUE NOV 01 00:00:00 AST 1949 58.00 13 8 4
Saw 810 THU JAN 15 00:00:00 AST 1959 3.00 5 0 2
Saw 385 SAT SEP 10 00:00:00 AST 1983 55.00 7 0 6
Knife 626 TUE JUN 30 00:00:00 AST 1936 9.00 14 7 15
Tape Measure 387 WED FEB 19 00:00:00 AST 2014 89.00 15 8 3
Sand Paper 987 WED NOV 17 00:00:00 AST 1926 91.00 1 14 15
Saw 880 WED MAY 13 00:00:00 AST 2009 8.00 6 14 10
Sand Paper 932 MON JAN 09 00:00:00 AST 1995 72.00 0 14 12
Vise 598 SUN FEB 11 00:00:00 AST 1951 97.00 3 10 0
Scraper 369 SUN AUG 08 00:00:00 AST 1943 6.00 5 14 12
Allen Key 167 SUN DEC 22 00:00:00 AST 1929 54.00 12 14 3
Knife 725 SAT DEC 16 00:00:00 AST 1961 40.00 13 13 10
Hammer 444 THU NOV 17 00:00:00 AST 1938 64.00 9 12 8
Chisel 70 WED SEP 30 00:00:00 AST 1903 31.00 6 2 11
Tape Measure 785 FRI APR 30 00:00:00 AST 1926 76.00 2 9 13
Tape Measure 769 THU MAY 25 00:00:00 AST 2000 93.00 12 0 12
Hammer 877 SAT JUL 16 00:00:00 AST 1977 68.00 1 6 0
Wrench 802 FRI DEC 31 00:00:00 AST 1915 26.00 15 13 7
Wrench 297 SAT JUN 12 00:00:00 AST 1976 44.00 12 15 3
file 159 TUE MAR 21 00:00:00 AST 1967 76.00 3 10 12
Allen Key 632 FRI MAY 14 00:00:00 AST 1971 29.00 11 6 13
Level 651 THU FEB 12 00:00:00 AST 2004 70.00 1 6 9
Wrench 451 MON JUL 19 00:00:00 AST 1982 68.00 10 10 4
Tape Measure 429 FRI FEB 28 00:00:00 AST 2014 23.00 0 0 7
Hammer 723 FRI JAN 12 00:00:00 AST 2001 86.00 13 12 5
Level 89 WED MAY 21 00:00:00 AST 1924 36.00 10 10 14
file 734 SAT JUL 19 00:00:00 AST 1930 88.00 10 13 14
Scraper 489 SUN SEP 26 00:00:00 AST 1926 79.00 0 0 4
Brush 419 FRI OCT 01 00:00:00 AST 1954 88.00 15 1 1
Tape Measure 990 MON FEB 28 00:00:00 AST 1921 69.00 0 3 8
Ruler 97 MON AUG 04 00:00:00 AST 1924 38.00 8 5 2
file 944 SAT MAY 18 00:00:00 AST 1963 94.00 4 8 12
Ruler 205 SUN DEC 22 00:00:00 AST 1912 95.00 6 0 3
Chisel 702 TUE APR 14 00:00:00 AST 1936 98.00 15 6 6
file 388 WED SEP 26 00:00:00 AST 1951 72.00 12 1 3
Knife 519 WED OCT 25 00:00:00 AST 1989 97.00 4 0 4
Pliers 90 WED OCT 31 00:00:00 AST 1928 92.00 12 3 1
file 905 THU SEP 25 00:00:00 AST 1902 15.00 7 10 8
Scraper 892 MON NOV 04 00:00:00 AST 1912 38.00 7 4 6
Brush 941 WED SEP 17 00:00:00 AST 2008 52.00 10 6 3
Screw Driver 196 TUE NOV 19 00:00:00 AST 1918 33.00 1 7 4
Vise 675 SAT NOV 10 00:00:00 AST 1951 100.00 4 9 10
Hammer 545 THU AUG 22 00:00:00 AST 1991 51.00 13 14 3
Vise 240 TUE SEP 17 00:00:00 AST 1935 68.00 8 8 15
Screw Driver 474 THU FEB 10 00:00:00 AST 1972 38.00 1 6 11
Saw 602 MON MAY 22 00:00:00 AST 1922 65.00 8 15 14
Knife 254 TUE JUL 11 00:00:00 AST 1961 76.00 11 1 3
答案 0 :(得分：0)
你可以使用BufferReader逐行读取，你的名字有问题，有时你的名字有一个字符串，有时两个，所以你得到java.util.InputMismatchException，因为你尝试读取int in id[i] = fin.nextInt();但是这不是一个int，因为你得到这个错误，这可以帮助你：
public static void main(String[] args) throws FileNotFoundException, UnsupportedEncodingException, IOException {
File filePath = new File("Store.txt");
BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(filePath), "Cp1252"));
String line;
String lineSplit[];
int i = 0;
while ((line = br.readLine()) != null) {
//replace multiple spapce with one space
line = line.replaceAll("\\s{2,}", " ").trim();
//Split the line with space so you can get an Array :
//like this [Saw, 562, SAT, SEP, 30, 00:00:00, AST, 1950, 37.00, 2, 13, 1]
//or this [Tape, Measure, 955, TUE, AUG, 27, 00:00:00, AST, 1918, 52.00, 13, 4, 4]
lineSplit = line.split(" ");
System.out.println(Arrays.toString(lineSplit));
//if we notice the Name can contain one String or two so we can check get names like this :
boolean check = false;
try {
Integer.parseInt(lineSplit[1]);
check = true;
} catch (NumberFormatException e) {
check = false;
}
if (check) {
name[i] = lineSplit[0];
id[i] = Integer.parseInt(lineSplit[1]);
year[i] = Integer.parseInt(lineSplit[7]);
price[i] = Double.parseDouble(lineSplit[8]);
sh[i] = Integer.parseInt(lineSplit[9]);
row[i] = Integer.parseInt(lineSplit[10]);
col[i] = Integer.parseInt(lineSplit[11]);
} else {
name[i] = lineSplit[0] + " " + lineSplit[1];
id[i] = Integer.parseInt(lineSplit[2]);
year[i] = Integer.parseInt(lineSplit[8]);
price[i] = Double.parseDouble(lineSplit[9]);
sh[i] = Integer.parseInt(lineSplit[10]);
row[i] = Integer.parseInt(lineSplit[11]);
col[i] = Integer.parseInt(lineSplit[12]);
}
i++;
}
br.close();
}
答案 1 :(得分：0)
我花了一些时间来理解代码，但最后我得到了它。
因此，您的变量num必须是文件中的总行数，并且您尝试为每个字段构建array。如果我错了，请继续阅读
如果我是对的，那么你的错误来自于使用nextLine()并相信它会跳转到文件下一行的下一个相同列值
当您使用nextLine()时，您实际上正在跳转到txt文件的下一行，该文件将从您的特定情况下的“名称”列开始，所以来吧为了引入第一行的id的int值，你实际上试图从第二行给它Name值的值
所以最好的方法是获取每一行的所有值，然后尝试拆分它们，希望你有一个逗号分隔文件，或者你可以从表格中生成一个，你从中检索你的数据
那么你将从文件中获取一个String数组，如下所示：
String[]arrayFromTheFile = new String[128];
int i=0;
File inputFile = new File("Store.txt");
Scanner fin = new Scanner(inputFile);
while (fin.hasNext()) {
arrayFromTheFile[i] = fin.next();
i++;
}
fin.close();
现在，只要您确定文件有128行，就构建了数组，如果没有，您将获得ArrayOutOfBoundsException这是一种全新的体验:)实际上最好做到这一点的方法是恐怖的，但正如你所说的那样，你是按照他们教给你的方式做的。
对于字段拆分以填充其他数组，您需要使用split()方法并使用字段之间可能存在的任何字符。我会留给你调查;）