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爪哇的烹饪单位

发布于 2024-07-24 07:34:50 字数 188 浏览 6 评论 0原文

是否有任何开源库可以用 Java 表示茶匙和汤匙等烹饪单位？

我只找到了 JSR-275 (https://jcp.org/en/jsr/详细信息？id=275）这很棒，但不了解烹饪装置。

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浅唱ヾ落雨殇 2024-07-31 07:34:50

JScience 是可扩展的，因此您应该能够创建 javax.measure.unit.SystemOfUnits 的子类。您将创建许多公共静态最终声明，如下所示：

public final class Cooking extends SystemOfUnits {
  private static HashSet<Unit<?>> UNITS = new HashSet<Unit<?>>();

  private Cooking() {
  }

  public static Cooking getInstance() {
    return INSTANCE;
  }
  private static final Cooking INSTANCE = new SI();

  public static final BaseUnit<CookingVolume> TABLESPOON = si(new BaseUnit<CookingVolume>("Tbsp"));

  ...

   public static final Unit<CookingVolume> GRAM = TABLESPOON.divide(1000);

}

public interface CookingVolume extends Quantity {
  public final static Unit<CookingVolume> UNIT = Cooking.TABLESPOON;
}

只要您知道转换系数是什么，定义其他单位和转换就非常简单。

JScience is extensible, so you should be able to create a subclass of javax.measure.unit.SystemOfUnits. You'll create a number of public static final declarations like this:

public final class Cooking extends SystemOfUnits {
  private static HashSet<Unit<?>> UNITS = new HashSet<Unit<?>>();

  private Cooking() {
  }

  public static Cooking getInstance() {
    return INSTANCE;
  }
  private static final Cooking INSTANCE = new SI();

  public static final BaseUnit<CookingVolume> TABLESPOON = si(new BaseUnit<CookingVolume>("Tbsp"));

  ...

   public static final Unit<CookingVolume> GRAM = TABLESPOON.divide(1000);

}

public interface CookingVolume extends Quantity {
  public final static Unit<CookingVolume> UNIT = Cooking.TABLESPOON;
}

It's pretty straightforward to define the other units and conversions, just as long as you know what the conversion factors are.

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