Iterative example doesn't iterate, mismatches parentheses and brackets. Because of this, the iterative example is shorter and simpler than the "short & simple" lambda example.

Lambda example is to the best of my parsing ability this:

  apples.stream()
    .filter(a -λ a.isRed());  // <-- note semicolon
    .forEach(giveApple);

Should be

  apples.stream()
    .filter(a -> a.isRed()) // or Apple::isRed
    .forEach(a -> giveApple(a)); // or this::giveApple

It's also somewhat implied that lambdas are faster, when they're generally about twice as slow as the same code written without lambdas.