Java8 Collectors mapping and joining function usages
1. What is annotation in java? Writing custom annotations and internal working of annotations. 2. What is Generics in java? Wildcards in generics and writing the custom Generic class (Generic Use) 3. What are the different collections you have used in your previous projects? Internal working of HashMap, TreeMap and PriorityQueue. 4. What are Fail-Safe and Fail-Fast mechanism of iterators? 5. What is volatile and differences between Atomic Classes (AtomicInteger, AtomicDouble) and volatile. 6. What is Lock interface and its implementation and how lock is different from synchronized keyword. 7. What are the blocked collections in java? 8. Differences ...