They will be asking the core concepts of Java , OOPs, Collection framework, diamond problem in java , Fibonacci series, then the remove the duplicates element from an array element , then introduce yourself

1) Why main method is void in JAVA? 2) Are string parameters mandatory in main method? At what time are the parameters read? 3)Difference between sleep and wait 4)Difference between yield vs join 5)Checked and unchecked exceptions. 6) Concurrent hash map. 7)Difference between isInstance and Instance of 8)When to use reflection and name few methods? 9)Fail fast vs fail safe iterator 10) JVM JRE and JDK.What does rt.jar contain? 11 )When to use LinkedHash Map and Tree map? Which is better for insertion,deletion and search? 12) What is static method?Where are static variable stored in memory? 13) JAVA memory model. 14)JAVA garbage collection process.What is survivor space? 15)When to override toString() method? 16)

First round is MCQ, after writing they will tell you, mail will come but no one gets mail.. It's a scam company kindly don't apply for it. They keep hiring every week, total time waste for us