Kotlin 术语 "mutable" 错了吗？

Question

我的理解是，“变量”一词指的是引用被重新分配的能力。 “常量”意味着不能重新分配引用。 Java.

中final与not的本质区别

var something = new obj() -> reference can be re-assigned  
val something = new obj() -> cannot be re-assigned

对我来说，“可变性”意味着能够修改 REFERAND/OBJECT 本身，而不是它的引用。 IE。被引用的对象。但是 Kotlin 并没有阻止这种情况。

你可以

val something = new obj()

但仍然能够在不重新分配给新标识符的情况下“改变”obj()。

我是不是误会了什么，还是用词不当？

Answer 1

val and var 只控制引用的不可变性而不是它指向的对象。

来自Kotlin in Action

There are two keywords to declare a variable:

val (from value)—Immutable reference. A variable declared with val can’t be reassigned after it’s initialized. It corresponds to a final variable in Java.

var (from variable)—Mutable reference. The value of such a variable can be changed. This declaration corresponds to a regular (non-final) Java variable.

Note that, even though a val reference is itself immutable and can’t be changed, the object that it points to may be mutable. For example, this code is perfectly valid:
val languages = arrayListOf("Java")
languages.add("Kotlin")

Kotlin 术语 "mutable" 错了吗？

Is the Kotlin term "mutable" wrong?

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