#212 HashMap Behavior When Adding Keys

Companies:

Sberbank

Themes:

JavaCollections & GenericsCode Review

What will be printed to the screen?

public class Main
{
    public static void main(String[] args) {
        HashMap<String, Integer> languages = new HashMap<>();

        languages.put("Java", 8);
        languages.put("JavaScript", 1);
        languages.put("Python", 3);
        languages.put("Java", 21);
        languages.put(null, 666);

        System.out.println(languages.size());
    }
}

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