Sollicitatievraag bij Quest Global

oops Concepts, String Immutanbility, Hast set, hashmap working, Break and Continue statements, Write a java program to find max element from list and return index and value. Write a java program to find Max sal of employee group by department.--- yes its a java program. not Query Spring Basics, Annotations, Exceptions, Transaction Flow... I never used annotations much so I failed at answers most of them.