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Discussion on: How to Make Your Reviewer Cry Using Java Optional

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joshuakb2 profile image
Joshua Baker •

This line could be made simpler:

System.out.println("The number is: " + number.orElseGet(() -> alternativeNumber()));
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is equivalent to

System.out.println("The number is: " + number.orElseGet(alternativeNumber));
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dante0747 profile image
Majid Abarghooei •

Hi Joshua. I don't think so; It faces a compile error.

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thegoncalomartins profile image
Gonçalo Martins • • Edited

Not like you described, but like this

System.out.println("The number is: " + number.orElseGet(NameOfTheClass::alternativeNumber));
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With method reference.

If the method was not static and was an instance one, then it would be like this

System.out.println("The number is: " + number.orElseGet(this::alternativeNumber));
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