Java 8 Quiz Challenge Welcome to your Java 8 Mastery Quiz: Test Your Knowledge! 1. What does the reduce() method in Java 8 streams do? Applies a function to each element Sorts elements in natural order Combines elements into a single value Filters elements based on a predicate None 2. Which method is used to terminate a stream and collect its elements into a collection? filter() collect() forEach() map() None 3. Which interface is used to define custom functional interfaces in Java 8? Predicate Function @FunctionalInterface Consumer None 4. How is a method reference represented in Java 8? :: => -> >> None 5. What is the purpose of the forEach() method in Java 8 streams? To collect elements into a collection To filter elements based on a predicate To sort elements in natural order To iterate over elements in a collection None 6. What does the map() method in the Stream API do? Applies a function to each element Filters elements based on a predicate Sorts elements in natural order Reduces elements to a single value None 7. Which functional interface represents a supplier of results? Supplier Consumer Predicate Function None 8. Which interface is a functional interface in Java 8? Callable Comparator Runnable Serializable None 9. Which method is used to create an infinite stream in Java 8? generate() filter() limit() map() None 10. What is a lambda expression in Java 8? A lightweight thread A collection data structure A type of variable An anonymous function None Please share your feedback in the comment box below. Congratulations on completing the Java 8 Mastery Quiz! Explore Java 8 concepts further at JavaDZone. Name Email Time's upTime is Up!
