是否可以为值分配或与值类型变量进行比较？

Question

In Java, there have always existed primitive types and references, but not value types.

One of the goals of Project Valhalla is to explore and incubate feature candidates such as value types .

I would like to know if null can be assigned to a value type variable, or if a value type variable can be compared to null .

If not, I would also like to know why.

Answer 1

From here: https://wiki.openjdk.java.net/display/valhalla/Minimal+Value+Types

Value types are "immutable, identity-agnostic, non-nullable, non-synchronizable, final"

So no, it can't be null

Answer 2

Value type variable is value , null is absense of any value. So null and value types are incompatible by definition.