private static void dfs2 ( int u ) {
  vis [ u ] = true ;
  ;
}

private static void dfs2 ( int u ) { vis [ u ] = true ; ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (true)))))