Click here to watch in Youtube : https://www.youtube.com/watch?v=cv5NKUQigJo&list=UUhwKlOVR041tngjerWxVccwTreeMapExample.java import java.util.SortedMap;
import java.util.TreeMap;
/*
* Example of tailMap(K fromKey, boolean inclusive) method.
*/
public class TreeMapExample
{
public static void main(String[] args)
{
TreeMap<Integer, String> treeMap = new TreeMap<Integer, String>();
treeMap.put(10, "Cat");
treeMap.put(50, "Dog");
treeMap.put(30, "Apple");
treeMap.put(40, "Ball");
treeMap.put(20, "Eagle");
System.out.println("treeMap : " + treeMap + "\n");
/*
* Returns a view of the portion of this map whose keys are greater than
* (or equal to, if inclusive is true) fromKey. The returned map is
* backed by this map, so changes in the returned map are reflected in
* this map, and vice-versa. The returned map supports all optional map
* operations that this map supports.
*/
SortedMap<Integer, String> sortedMap = treeMap.tailMap(20, false);
System.out.println("sortedMap [inclusive is false] : " + sortedMap
+ "\n");
sortedMap = treeMap.tailMap(20, true);
System.out.println("sortedMap [inclusive is true] : " + sortedMap);
}
}
Output treeMap : {10=Cat, 20=Eagle, 30=Apple, 40=Ball, 50=Dog}
sortedMap [inclusive is false] : {30=Apple, 40=Ball, 50=Dog}
sortedMap [inclusive is true] : {20=Eagle, 30=Apple, 40=Ball, 50=Dog}