Can the `valueOf()` method be used to convert an `int` to an `Integer` object?
Yes, `valueOf()` can convert an `int` to an `Integer` object, but it returns the same object if the value is between -128 and 127.
Impressive! You've correctly mentioned the object caching behavior of `valueOf()` for `Integer` values between -128 and 127.
Can you explain how `valueOf()` handles caching for `Integer` and if this affects memory usage?