treemap comparator java code example

Example: Java treemap comparator() method example

// Java treemap comparator() method example
import java.util.Comparator;
import java.util.NavigableMap;
import java.util.TreeMap;
public class TreemapComparatorExample 
{
   public static void main(String[] args) 
   {
      NavigableMap<Integer, String> nm = new TreeMap<Integer, String>();
      // populating tree map
      nm.put(101, "apple"); 
      nm.put(102, "banana"); 
      nm.put(103, "apricot"); 
      nm.put(104, "blackberry"); 
      nm.put(105, "avocado"); 
      // printing TreeMap 
      System.out.println("TreeMap: " + nm);
      // using comparator() method
      Comparator c = nm.comparator();
      // print comparator value
      System.out.println("Comparator value: " + c);
   }
}