Jeanne Boyarsky

This sounds like an English thing. Preferred was us saying it uses Zoo.properties .

There's nothing wrong with line 3. Line 2 doesn't compile.

The compiler doesn't complain about line 3 because it doesn't have any errors. And if line 2 were fixed, line 3 would be fine.

I took mine on a laptop screen and didn't have any issues with font. (Mac on Safari). Maybe it is OS/browser dependent? I recommend reporting the font issue to Oracle.

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Ooh! You're right. Added to the errata

IT's not a It'a s choose one question though. So assuming it isn't a directory isn't the most likely case.

Good thing there wasn't a none of the above answer .

For what ti's worth, we clarified in the Java 21 book!

markwilly willy wrote:For answer 23, the explanation says parentheses can be omitted in lambda expressions, but option C still has them.

Option C is:
(i) -> i==5

This is a legal lambda. The parens can be omitted. That means they are allowed to be there and allowed to not be there. It doesn't mean it is illegal with the parens.

markwilly willy wrote:For option F, the explanation states the return statement is optional with a single statement, but option F includes a return statement and brackets.

Option F is:
(i) -> { return i==5; }
This is also legal. Again, optional means can have or choose not to have.

The question asks about legal lambdas, not the shortest possible lambda.

I had to take it twice as well. I got a few of the same questions and many different ones. THere's definitely an element of randomness.

Blogs:

Scott's attempt - passed

My first attempt - failed

My second attempt - passed

We used paper on all three of these and wrote about that in the blog. I can't imagine taking this exam without being able to write things down!

After we took it, Scott and I let Oracle know the exam was too long and they are looking at options.

I assume DSA is data structures and algorithms?

I don't think the cert questions are easier to harder, but they are completely different. So the answer of which is easier is going to depend on your skills and preferences.

Agreed it is an errata. Logging now.

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