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