Java Collection How to - Get Tail/Sub Map from TreeMap(Sorted Map)








Question

We would like to know how to get Tail/Sub Map from TreeMap(Sorted Map).

Answer

//from   w  ww .j av a  2 s.  co m
import java.util.SortedMap;
import java.util.TreeMap;

public class Main {

  public static void main(String[] args) {
    TreeMap<String, String> treeMap = new TreeMap<String,String>();
    treeMap.put("1", "One");
    treeMap.put("3", "Three");
    treeMap.put("2", "Two");
    treeMap.put("5", "Five");
    treeMap.put("4", "Four");

    SortedMap sortedMap = treeMap.tailMap("2");
    System.out.println("Tail Map Contains : " + sortedMap);
  }
}

The code above generates the following result.