TreeMap K firstKey() method in java
import java.util.TreeMap;
public class TreeMapFirstKeyMethodExample
{
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("first key of TreeMap: ");
System.out.println("First key is: " + tm.firstKey());
}
}