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