如果用户提供了正确的密码，就执行命令，票据复位，计时重新开始。
If the user gives the correct password, the command is executed, the ticket is then re-set, and the time clock starts all over again.
创建一个Statement来执行删除和重新创建表的命令，这允许您在数据库受损时通过此程序重置数据库。
You create a Statement to execute commands to drop and recreate the table, which allows you to reset the database from this program if it becomes corrupted.
通过在ha3上以用户loadl的身份执行下面的命令，重新恢复ha3机器上的startd后台进程。
Resume the startd daemon on the ha3 machine by executing the following command on ha3 as user loadl.
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