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