/**
* @author Muhammad Bagus Istighfar
* @version 28-10-20
*/
import java.util.*;
public class Hashmap
{
public static void main(String args[])
{
HashMap<Integer,String> hm=new HashMap<Integer,String>();
hm.put(100,"Bagus");
hm.put(101,"Ibram");
hm.put(102,"Eka");
hm.put(null, "Nova");
for(Map.Entry m:hm.entrySet())
{
System.out.println(m.getKey()+" "+m.getValue());
}
}
}