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