// The Hamming distance between two strings of equal length is

// the number of positions at which the corresponding symbols are different.

// https://en.wikipedia.org/wiki/Hamming_distance

int hamming_distance(String stringA, String stringB) {

//Calculates Hamming Distance

int distance;

//strings must be of equal length

if (stringA.length != stringB.length) {

print('String lengths must be same!');

return 0;

} else {

distance = 0;

for (var i = 0; i < stringA.length; i++) {

if (stringA[i] != stringB[i]) {

distance += 1;

}

}

}

return distance;

}

void main() {

String stringA;

String stringB;

int dist;

stringA = 'karolin';

stringB = 'kathrin';

dist = hamming_distance(stringA, stringB);

print('Hamming Distance between $stringA and $stringB is $dist');

stringA = '1011101';

stringB = '1001001';

dist = hamming_distance(stringA, stringB);

print('Hamming Distance between $stringA and $stringB is $dist');

}