Java调用DOS命令实现关机

public static void shutdown(){
        
        System.out.print("请输入多少分钟后关机:");
        Scanner scanner = new Scanner(System.in);
        int minute = scanner.nextInt()*60;
        Runtime runtime = Runtime.getRuntime();
        String shutdown = "shutdown -s -t "+minute;
        try {
            runtime.exec(shutdown);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }