This all can be done with no mutable state in the client code.
所有这些都可以在客户端代码中没有可变状态的情况下完成。
未来是不定的！
Or a list of anything that could be mutable.
或者是包含其它有可变的结果的链表。
都是可变的。
Nor are the other mutable collection classes.
也不是其他可变的集合类。
More often than not, they involve mutable object state.
而它们时常也会涉及易变的对象状态。
For mutable objects, the answer is not always so clear.
对于可修改对象来说，答案并不总是如此清楚。
The class that is shown in the previous example is mutable.
前面示例中所示的类是可变的。
And this all can be done with no mutable state in the client code.
在客户代码中，这些都可以在不使用可变状态的情况下就能做到。
Some design problems are easier to solve with mutable objects.
有一些设计问题还是使用易变对象比较容易解决。
Scala also will not prevent you from writing code with mutable state.
Scala也不会阻止您在可变状态下编写代码。
One approach to this issue is to minimize mutable state in the database.
此问题的一种解决方法是要最大限度地减少数据库中的可变状态。
While mutable containers are very flexible, their dynamic nature can result in a performance hit.
虽然可变容器非常灵活，但它们的动态特性会对性能造成影响。
While mutable containers are very flexible, their dynamic nature can result in a performance hit.
虽然可变容器非常灵活，但它们的动态特性会对性能造成影响。
应用推荐