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