blob: 477e59f8d333e117d86bc2f0dc2c58c58442af62 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
//
// See ../README.md
//
//
// Run as: ln ch-2.java ch2.java; javac ch2.java; java ch2 < input-file
//
import java.util.*;
import java.util.regex.Pattern;
public class ch2 {
public static void main (String [] args) {
Scanner scanner = new Scanner (System . in);
String valid = "[0-9BCDFGHJKLMNPQRSTVWXYZ]";
String pattern = "^" + valid + valid + valid +
valid + valid + valid + "[0-9]" + "$";
int [] w = {1, 3, 1, 7, 3, 9, 1};
try {
while (true) {
String sedol = scanner . nextLine ();
//
// Check for the correct syntax
//
if (!Pattern . matches (pattern, sedol)) {
System . out . println (0);
continue;
}
char [] chars = sedol . toCharArray ();
int check = 0;
for (int i = 0; i < 7; i ++) {
int val = (int) chars [i];
val -= val <= (int) '9' ? (int) '0' : (int) 'A';
check += w [i] * val;
}
System . out . println (check % 10 == 0 ? 1 : 0);
}
}
catch (Exception e) {
//
// EOF
//
}
}
}
|
