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