Remove value from Java TreeMap example

/*
  Remove value from Java TreeMap example
  This Java Example shows how to remove a key value pair from TreeMap object using
  remove method.
*/
 
import java.util.TreeMap;
 
public class RemoveValueFromTreeMapExample {
 
  public static void main(String[] args) {
 
    //create TreeMap object
    TreeMap treeMap = new TreeMap();
 
    //add key value pairs to TreeMap
    treeMap.put("1","One");
    treeMap.put("2","Two");
    treeMap.put("3","Three");
 
    /*
      To remove a key value pair from TreeMap use
      Object remove(Object key) method of TreeMap class.
      It returns either the value mapped with the key or null if no value
      was mapped.     
    */
 
    Object obj = treeMap.remove("2");
    System.out.println(obj + " Removed from TreeMap");
 
  }
}
/*
Output would be
Two Removed from TreeMap
*/