TreeMap headMap() method in java
import java.util.SortedMap;
import java.util.TreeMap;
public class TreeMapHeadMapMethodExample
{
public static void main(String[] args)
{
TreeMap<Integer, String> tm = new TreeMap<Integer, String>();
// map string values to integer keys
tm.put(65, "mango");
tm.put(63, "apple");
tm.put(35, "grapes");
tm.put(60, "pineapple");
tm.put(26, "banana");
System.out.println("Given TreeMap is: " + tm);
// create SortedMap for map head
SortedMap<Integer, String> sm = new TreeMap<Integer, String>();
sm = tm.headMap(60);
// Getting map head
System.out.println("headmap is: " + sm);
}
}