static String nextLine ( ) throws IOException {
  return br . readLine ( ) ;
}

static String nextLine ( ) throws IOException { return br . readLine ( ) ; }
(method_declaration (modifiers) type: (type_identifier) name: (identifier) parameters: (formal_parameters) (throws (type_identifier)) body: (block (return_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))