Is there a standard option or nullable class in Java?

Nullable (c#) has some different meanings, but in any case, option (Scala) and nullable can be used to express the concept of "valuable or worthless"

For example, if you want to find a substring in a string - instead of intcure - 1 as int, it's best to return option [int] (in Scala, it will be none)

Is there such a class in standard Java? If so, what is it?

Please note that I am not asking about such courses

to update

As I wrote, nullable has different meanings Think about it:

Imagine which semantics of map [K, v] and method is the value of obtaining the key. If there is such a key, or there is no such key at all

You can't use null for two reasons. You can't use any specific class for one reason Option [v] is the way to go

Solution

No, There is no such construction standard in Java*

There are 7000 or, as yshavit said, optional in guava... Or, you can create your own type... But there is no appropriate language support... Well, I just want to say that I avoid using Java

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