1. OOP Concepts - Provide real-world examples and explain usage in code. 2. Java Memory Management - Stack vs Heap, Garbage Collection, memory leaks, object creation and scope. 3. Exception Handling - Checked vs Unchecked exceptions - try-catch-finally, throws vs throw, custom exceptions. 4. Collections Framework - List, Set, Map interfaces and implementations - ArrayList vs LinkedList, HashSet vs TreeSet, HashMap vs LinkedHashMap 5. Multithreading and Concurrency - Thread lifecycle, Runnable vs Thread, synchronization, volatile, wait/notify - ExecutorService, Callable, Future

Started with coding round where mainly they check the logical mind of the candidate and gives questions related to strings..... Technical interview have question related to opps concept sql and hr interview mainly for checking your communication skills