Java Programming Advanced Quiz 4
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Advanced Quiz 4
1. Which of these is NOT a valid Stream terminal operation?
filter()
collect()
forEach()
2. Which Java feature allows multiple inheritance of type?
Interfaces with default methods
Abstract classes
Enums
3. What is the main benefit of using CompletableFuture over Future?
Supports non-blocking asynchronous programming
Is thread-safe
Is immutable
4. Which annotation is used to indicate a method should run after dependency injection in Spring?
@PostConstruct
@Autowired
@After
5. Which method is used to get a sublist from a List?
subList()
slice()
getSubList()
6. What is the default load factor of a HashMap?
0.75
0.5
1.0
7. Which interface is used for resource management in try-with-resources?
AutoCloseable
Closeable
Serializable
8. Which method in Thread is used to check if it is alive?
isAlive()
alive()
isRunning()
9. Which class is used to create a thread pool?
Executors
ThreadPool
ThreadManager
10. Which class is used to create immutable maps in Java 9+?
Map.of()
Collections.unmodifiableMap()
ImmutableMap
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