Walmart Software Engineer I interview questions

Reverse a linked list and its complexity What is Heap Different Sorting techniques Different searchesSearching About multithreading and synchronization which is best sort and why what is merge sort and how does it work polymorphism and inheritance Difference between final, finally and finalize Try without a catch Difference between where and having clause in SQL Types of exception java Generics All this in a half an hour technical interview where first 10 mins will be explained about the company.

- what are jax-WS, Jax-RS services -what is sonar code anaylaser -multhreading scenario in web services and application server tomcat -Implement multi-threading -linked list reverse, find mid of linked list, string reverse recursively -Hashmaps and internal working, hashcode -data structures, trees, complexities of algorithms and asked to reduce the complexities -Spring MVC, Dependancy Injection. Was asked to explain it with the help of a use case scenario -Asked about hibernate, persistence layer