Java NavigableMap remove element by key value range

import java.util.NavigableMap;
import java.util.TreeMap;

public class Main {
  public static void main(String[] args) {
    NavigableMap<Integer, String> map = new TreeMap<Integer, String>();
    map.put(1, "CSS");
    map.put(2, "HTML");
    map.put(3, "Java");
    map.put(4, "Javascript");
    map.put(5, "SQL");

    System.out.println(map);/*from  w  w w  .  ja v a 2s.c o  m*/
    
    map.subMap(1, false, 3, false).clear();
    
    System.out.println(map);
  }
}