public static String displayMap(String mapName,Map<String,Object> map){
  StringBuilder sb=new StringBuilder();
  sb.append(mapName);
  sb.append(":\n");
  Set<String> keys=map.keySet();
  if (keys.isEmpty()) {
    sb.append("None\n");
  }
 else {
    int count=0;
    for (    String key : keys) {
      sb.append("  [");
      sb.append(++count);
      sb.append("] ");
      sb.append(key);
      sb.append(": ");
      sb.append(map.get(key));
      sb.append("\n");
    }
  }
  return sb.toString();
}

public static String displayMap ( String mapName , Map < String , Object > map ) { StringBuilder sb = new StringBuilder ( ) ; sb . append ( mapName ) ; sb . append ( ":\n" ) ; Set < String > keys = map . keySet ( ) ; if ( keys . isEmpty ( ) ) { sb . append ( "None\n" ) ; } else { int count = 0 ; for ( String key : keys ) { sb . append ( "  [" ) ; sb . append ( ++ count ) ; sb . append ( "] " ) ; sb . append ( key ) ; sb . append ( ": " ) ; sb . append ( map . get ( key ) ) ; sb . append ( "\n" ) ; } } return sb . toString ( ) ; }
display the keys and values in a map
