Java 中的 Double.MIN_VALUE 是否大于零？
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Is Double.MIN_VALUE is greater than zero in Java?
提问by Krishnamurthy
I found a bug in my code which boiled down to comparing Double(0.0)with Double.MIN_VALUE. Essentially, the following returns false:
我在我的代码中发现了一个错误，归结为Double(0.0)与Double.MIN_VALUE. 本质上，以下返回 false：
System.out.println(0.0 > Double.MIN_VALUE);
How is this possible?
这怎么可能？
回答by Andy White
According to the javadoc for Double.MIN_VALUE, MIN_VALUE is:
根据Double.MIN_VALUE的javadoc， MIN_VALUE 是：
A constant holding the smallest positive nonzero value of type double
一个常量，持有 double 类型的最小正非零值
So Double.MIN_VALUE is not negative, it's the positive value that's as close as a Double can get to zero (without being zero).
所以 Double.MIN_VALUE 不是负数，它是正值，它与 Double 可以达到零（不为零）一样接近。
回答by AaronD
Double.MIN_VALUE is the smallest positive non-zero value which can be represented by a Java double (see the JavaDoc at http://download.oracle.com/javase/8/docs/api/java/lang/Double.html).
Double.MIN_VALUE 是可以由 Java 双精度表示的最小正非零值（请参阅http://download.oracle.com/javase/8/docs/api/java/lang/Double.html 上的 JavaDoc ） .
