Analisis kadar pusing ganti inventori dan fungsi kawalan umur gudang sistem pengurusan gudang Java

import java.util.Date; public class InventoryTurnover { private int beginningInventory; private int endingInventory; private int costOfGoodsSold; public InventoryTurnover(int beginningInventory, int endingInventory, int costOfGoodsSold) { this.beginningInventory = beginningInventory; this.endingInventory = endingInventory; this.costOfGoodsSold = costOfGoodsSold; } public double calculateInventoryTurnoverRate() { double averageInventory = (beginningInventory + endingInventory) / 2.0; return costOfGoodsSold / averageInventory; } public static void main(String[] args) { int beginningInventory = 1000; int endingInventory = 1200; int costOfGoodsSold = 5000; InventoryTurnover inventoryTurnover = new InventoryTurnover(beginningInventory, endingInventory, costOfGoodsSold); double turnoverRate = inventoryTurnover.calculateInventoryTurnoverRate(); System.out.println("库存周转率为：" + turnoverRate); } }

import java.util.Date; public class InventoryAgeControl { private Date manufacturingDate; private int maximumAge; public InventoryAgeControl(Date manufacturingDate, int maximumAge) { this.manufacturingDate = manufacturingDate; this.maximumAge = maximumAge; } public boolean isExpired() { Date currentDate = new Date(); long daysBetween = (currentDate.getTime() - manufacturingDate.getTime()) / (1000 * 3600 * 24); return daysBetween > maximumAge; } public static void main(String[] args) { Date manufacturingDate = new Date(); int maximumAge = 365; InventoryAgeControl inventoryAgeControl = new InventoryAgeControl(manufacturingDate, maximumAge); boolean isExpired = inventoryAgeControl.isExpired(); System.out.println("商品是否过期：" + isExpired); } }