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