import java.util.Map;
import java.util.HashMap;
import java.util.TreeMap;
public class CreateTreeMapExample {
    public static void main(String[] args) {
        Map<String, String> languages  = new HashMap<>();
        languages.put("J", "Java");
        languages.put("J", "Jscript");
        languages.put("C", "C++");
        languages.put("N", ".NET");
        languages.put("P", "Pascal");
        Map<String, String> languages1  = new TreeMap<>(languages);
        System.out.println(languages1);
    }
  }