static char nextChar ( ) throws IOException {
  return ( char ) br . read ( ) ;
}

static char nextChar ( ) throws IOException { return ( char ) br . read ( ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters) (throws (type_identifier)) body: (block (return_statement (cast_expression type: (integral_type) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))))))