Domande di colloquio per Software Engineer (Java) presso Fiserv

Code snippets and if I see anything wrong with them. They gave me hints when I was stuck.

Asked about inheritance and polymorphism.

Presented me with SQL statements. Asked what the result would be for inner join, right join, and left join.

Wanted to know if I was familiar with Fortify or Kafka. I was not so no clue what the questions were going to be.

Asked about the Java design pattern.

Asked if I knew sorting algorithms such as selection, insertion, and bubble sorts. Had me share my screen and code the sorting algorithm. they wanted me to code selection sort or insertion and I said I don't know how. So they said bubble sort is fine then. So make sure you have IntelliJ and are comfortable coding during the interview. I used Java btw.