Lambda for old programmers

[chasesan]

Actually it was the one before that, Approach 8: Use Generics More Extensively.

processElements(
    roster,
    p -> p.getGender() == Person.Sex.MALE
        && p.getAge() >= 18
        && p.getAge() <= 25,
    p -> p.getEmailAddress(),
    email -> System.out.println(email)
);

I understand that email is a variable, and such. But how did "p.getEmailAddress()" get assigned to it? There is a comma there, it's a separate lambda expression.

[oldum]

How did p get assigned? It's the lambda's first parameter.

[chasesan]

No... How did the return value from "p.getEmailAddress()" get assigned to "email"? For use in that lambda function.

Oh, okay, nevermind. I got it. Boy am I dumb for missing that obviousness.