I want to use the fluent api of Optional and apply two Consumers to it.
I’m dreaming about something like this:
Optional.ofNullable(key)
.map(Person::get)
.ifPresent(this::printName)
.ifPresent(this::printAddress); // not compiling, because ifPresent is void
How do I apply several Consumers to an Optional?
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Answer
You can use this syntax:
ofNullable(key)
.map(Person::get)
.map(x -> {printName(x);return x;})
.map(x -> {printAddress(x);return x;});