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[Java 101] 217. Contains Duplicate with HashSet, Arrays.stream 본문

Computer Science/Java

[Java 101] 217. Contains Duplicate with HashSet, Arrays.stream

focalpoint 2023. 2. 14. 02:38 
class Solution {
    public boolean containsDuplicate(int[] nums) {
        Set<Integer> numSet = new HashSet<>(
            Arrays.stream(nums).boxed().collect(Collectors.toSet())
        );
        return nums.length != numSet.size();
    }
}
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