Damm algorithm: Difference between revisions
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Line 586:
112946 true
112949 false</pre>
=={{header|Groovy}}==
{{trans|Java}}
<lang groovy>class DammAlgorithm {
private static final int[][] TABLE = [
[0, 3, 1, 7, 5, 9, 8, 6, 4, 2],
[7, 0, 9, 2, 1, 5, 4, 8, 6, 3],
[4, 2, 0, 6, 8, 7, 1, 3, 5, 9],
[1, 7, 5, 0, 9, 8, 3, 4, 2, 6],
[6, 1, 2, 3, 0, 4, 5, 9, 7, 8],
[3, 6, 7, 4, 2, 0, 9, 5, 8, 1],
[5, 8, 6, 9, 7, 2, 0, 1, 3, 4],
[8, 9, 4, 5, 3, 6, 2, 0, 1, 7],
[9, 4, 3, 8, 6, 1, 7, 2, 0, 5],
[2, 5, 8, 1, 4, 3, 6, 7, 9, 0],
]
private static boolean damm(String s) {
int interim = 0
for (char c : s.toCharArray()) interim = TABLE[interim][c - ('0' as Character)]
return interim == 0
}
static void main(String[] args) {
int[] numbers = [5724, 5727, 112946, 112949]
for (Integer number : numbers) {
boolean isValid = damm(number.toString())
if (isValid) {
System.out.printf("%6d is valid\n", number)
} else {
System.out.printf("%6d is invalid\n", number)
}
}
}
}</lang>
{{out}}
<pre> 5724 is valid
5727 is invalid
112946 is valid
112949 is invalid</pre>
=={{header|J}}==
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