How do iterate over each Entry in a Map?

  
import java.util.HashMap;
import java.util.Map;


public class Test {

 
 public static void main(String[] args) {
  Map<String, String> hashmap = new HashMap<String, String>();
  
  hashmap.put("1","ram");
  hashmap.put("2","babu");
  hashmap.put("3","rambabu");
  hashmap.put("4","baburam");
  
  for (Map.Entry<String, String> entry : hashmap.entrySet())
  {
      System.out.println(entry.getKey() + "-" + entry.getValue());
  }
  
 }
}