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public class JewelsAndStones {

public int numJewelsInStones(String J, String S) {

int character[] = new int[256];

for (char c : J.toCharArray()) {

character[c]++;

}

int count = 0;

for (char c : S.toCharArray()) {

if (character[c] > 0) {

count++;

}

}

return count;

}

}