As I’ve usedOptionalin my Java code, I’ve come to appreciate times when I don’t need to useOptional.isPresent(). However, there are times when there’s no good way around it and I look forward to the addition ofOptional.isEmpty()to replace the use of!Optional.isPresent(). The a...
class constructors with optional fields, and quickly look at bad practices of the discussed topic. We’ll stop for a moment to look at Java 8 Optional and assess(vt. 评定;估价) if it fits our needs.