Lambda İle String Operation - Java8 ile derle, çalıştır. Paketi yok doğrudan javac App.java, java App

App.java

public class App {
    public static void main(String[] args) 
    {
        Utils.run(new java.util.HashMap<Character, Integer>());
    }
}

class Utils {
    public static java.util.HashMap<Character, Integer> run(java.util.HashMap<Character, Integer> hm)
    {
        "Araba".chars().mapToObj(val -> (char)val).forEach(ch -> {
            if (hm.containsKey(ch))
                hm.put(ch, hm.get(ch) + 1);
            else
                hm.put(ch, 1);
        });
        
        System.out.println(hm);
        return hm;
    }
}