Boats to Save People LeetCode solution in Java

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class Solution {
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  public int numRescueBoats(int[] people, int limit) {
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    int boatCount = 0;
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    Arrays.sort(people);
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    int left = 0;
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    int right = people.length - 1;
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    while (left <= right) {
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      int sum = people[left] + people[right];
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      if (sum <= limit) {
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        boatCount++;
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        left++;
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        right--;
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      } else {
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        boatCount++;
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        right--;
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      }
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    }
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    return boatCount;
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  }
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}