Java實用工具類-根據當前weekday返回分段排序的週一至週日

需求 如圖所示,當: weekday = 1時,返回Set:[1, 2, 3, 4, 5, 6, 7] weekday = 2時,返回Set:[2, 3, 4, 5, 6, 7, 1] weekday = 3時,返回Set:[3, 4, 5, 6, 7, 1, 2] weekday = 4時,返回Set:[4, 5, 6, 7, 1, 2, 3] weekday = 5時,返回Set:[5, 6,
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