The only topic they cover is Java-core. Nothing else. 1. How to choose when to use Interface vs abstract class? 2. Integer int (Autoboxing) 3. Comparison and use-case of LinkedList and ArrayList. Cost of insertions. 4. Immutable List provided by Java - List.of() 5. Difference between float a = 1.5f and double a = 1.5 6. what are some Java annotations you have used? 7. What are Atomic classes in Java ? (java.util.concurrent.atomic) 8. What are Java servlets? 9. What are diff design patterns in Java? 10. Difference types of testing (Acceptance , Regression Testing). 11. They will show 7 or 8 small code pieces and ask either the output or the bug or ask you to refactor it. For example code related to Java Stream API. .stream.collect.groupBy(n-n%2).

Question

The only topic they cover is Java-core. Nothing else.
1. How to choose when to use Interface vs abstract class?
2. Integer <-> int (Autoboxing)
3. Comparison and use-case of LinkedList and  ArrayList. Cost of insertions.
4. Immutable List provided by Java - List.of()
5. Difference between float a = 1.5f and double a = 1.5
6. what are some Java annotations you have used?
7.  What are Atomic classes in Java ? (java.util.concurrent.atomic)
8. What are Java servlets?
9. What are diff design patterns in Java?
10. Difference types of testing (Acceptance , Regression Testing).
11. They will show 7 or 8 small code pieces and ask either the output or the bug or ask you to refactor it. For example code related to Java Stream API. .stream.collect.groupBy(n->n%2).

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