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#121 add right answer in 5 0 2 in completed #124

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Merged
merged 1 commit into from
Jun 27, 2022
Merged

#121 add right answer in 5 0 2 in completed #124

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9 changes: 3 additions & 6 deletions ...l-programming/5-0-2-stream-sum-of-squares/src/main/java/com/bobocode/fp/SumOfSquares.java
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Original file line number Diff line number Diff line change
Expand Up @@ -27,11 +27,8 @@ static int calculateSumOfSquaresInRange(int startInclusive, int endInclusive) {
throw new InvalidRangeException();
}

// todo: refactor using functional approach – instead of using for loop, use IntStream.rangeClose()
int sumOfSquares = 0;
for (int i = startInclusive; i <= endInclusive; i++) {
sumOfSquares += i * i;
}
return sumOfSquares;
return IntStream.rangeClosed(startInclusive, endInclusive)
.map(a -> a * a)
.sum();
}
}