TreeMap V get(Object key) method in java

import java.util.TreeMap;
public class TreeMapGetObjectMethodExample
{
   public static void main(String[] args)
   {
      TreeMap<Integer, String> tm = new TreeMap<Integer, String>();
      tm.put(2, "tejas");
      tm.put(1, "om");
      tm.put(3, "tarun");
      tm.put(6, "siddarth");
      tm.put(5, "fanindra");
      System.out.println("Check value of key 5: ");
      System.out.println("Value is: " + tm.get(5));
   }
}