Number of Students Doing Homework at a Given Time LeetCode solution in Java

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class Solution {
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  public int busyStudent(int[] startTime, int[] endTime, int queryTime) {
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    int count = 0;
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    for (int i = 0; i < startTime.length; ++i) {
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      if (queryTime >= startTime[i] && queryTime <= endTime[i]) ++count;
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    }
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    return count;
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  }
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}