Iterate the keys from of a map in Java

// w ww.j a v  a2s .c  om
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

public class Main {
  public static void main(String[] argv) throws Exception {
    Map map = new HashMap();

    for (Iterator it = map.keySet().iterator(); it.hasNext();) {
      Object key = it.next();
    }
  }
}