Parsing with DateTimeFormatter that is case-sensitive vs parseCaseInsensitive() .
: Many questions allow selecting 1 to 3 correct options; partial credit is rare—you must often get all correct options to score. Core Topics for Java 8 (Updated)
The old test asked about the difference between map() and flatMap() . The new test presents complex stream pipelines and asks for the or a compile error .
Older versions had more questions on java.util collections basics (ArrayList, HashMap). The updated test heavily reduces those in favor of Stream operations (flatMap, reduce, collect), Optional misuse , and ConcurrentHashMap atomic methods. The old test asked about the difference between
Warning: Partially correct selections earn zero points for that question.
The updated exam tests your familiarity with the immutable, thread-safe date-time framework that replaced java.util.Date and java.util.Calendar . The updated test heavily reduces those in favor
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