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