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.

The 'long' code for checking apples is shorter, but it's missing the external for loop. So I guess you could say it's not (ahem) an apples to apples comparison.

I'm not OP but:

- missing ")" on the left side

- extra "}" on the right side

- the apples example on the right side ("Short code") ist significantly longer than the equivalent "Long code" example on the left side (which might also be because that code example omits the necessary for loop).

- The headings don't provide structure. "Checking Each Apple" and "Only Red Apples!" sounds like opposites, but the code does more or less the same in both cases.

No “for” loop in the example purportedly showing an iterative approach.

Not mentioning the pain of debugging the streaming solution is also a little disingenuous.