Sha256: e0b339c49a94b7c21d13bdbf62812c1789b45e299c7b47b1430a62f536bad8f5
Contents?: true
Size: 822 Bytes
Versions: 24
Compression:
Stored size: 822 Bytes
Contents
import java.util.stream.IntStream;
final class NaturalNumber {
private final int naturalNumber;
NaturalNumber(int naturalNumber) {
if (naturalNumber <= 0) throw new IllegalStateException("Natural numbers are all positive.");
this.naturalNumber = naturalNumber;
}
Classification getClassification() {
final int aliquotSum = computeAliquotSum();
if (aliquotSum == naturalNumber) {
return Classification.PERFECT;
} else if (aliquotSum > naturalNumber) {
return Classification.ABUNDANT;
} else {
return Classification.DEFICIENT;
}
}
private int computeAliquotSum() {
return IntStream.range(1, naturalNumber)
.filter(it -> naturalNumber % it == 0)
.sum();
}
}
Version data entries
24 entries across 24 versions & 1 rubygems