java-coordinate-review's People
java-coordinate-review's Issues
Functional Interfaces should be as specialized as possible
함수형 인터페이스는 최대한 자세한 것이 좋습니다. 즉, 위 코드 보다 아래 코드가 더 낫습니다.
private boolean checkKindsOfCoordinate(final List<Point> pointList, final Function<Point, Integer> function) {
Set<Integer> numberSet = pointList.stream()
.map(function)
.collect(Collectors.toSet());
return numberSet.size() != 2;
}
private boolean checkKindsOfCoordinate(final List<Point> pointList, final ToIntFunction<Point> function) {
Set<Integer> numberSet = pointList.stream()
.mapToInt(function)
.boxed()
.collect(Collectors.toSet());
return numberSet.size() != 2;
}
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