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