#263 Getting Unique Countries from a List of Persons

Companies:

HRGrow

Themes:

JavaStreams & LambdasPractice

Write a method that returns unique countries:

class Person {
    String name;
    List<String> country;
}

List<String> getAllUniqCountry(List<Person> persons) {
    ...
}

Question review

Mentor

Answer as you would in a real interview. I’ll ask follow-up questions, then compare your answer with the reference answer and show your accuracy as a %.

Sign in to start the dialogue The mentor keeps the context of the current question and your previous messages.