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