#484 Comparing Two Maps and Finding Changes
Write code that finds what is missing, what is extra, and what has changed:
var old = Map.of("Kolya", 1, "Petya", 5, "Tanya", 4);
var fresh = Map.of("Kolya", 3, "Vika", 7, "Tanya", 4, "Vanya",9);
Question review
Sign in to start the dialogue
The mentor keeps the context of the current question and your previous messages.
Sign in
Available with Premium
This is just one of the solutions available with Premium. And more:
- 250+ advanced lectures
- 1300+ practice exercises
- 500+ solutions to problems from real interviews
- Personalized Java Hub certificates
- Expanded access to the AI mentor