How Can I Efficiently Check if a Date Falls Within a Given Range?

Determining Date Ranges Effectively

Question:

Database retrieval often yields dates with timestamps. Devising a simple and efficient method for verifying whether a specific date falls within a specified range becomes crucial.

Answer:

Utilizing the inherent comparators of Date objects offers a straightforward approach:

boolean isWithinRange(Date testDate) {
   return !(testDate.before(startDate) || testDate.after(endDate));
}

This code ensures that the testDate is not before the startDate or after the endDate, effectively determining its presence within the target range. The negation of this condition (!!) provides the desired result.

Note that this approach accommodates instances where testDate is equal to either the startDate or the endDate, unlike alternative formulations that employ the after() and before() methods. This comprehensive solution ensures accuracy and versatility in date range verification.

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