模拟ATM系统（JAVA与数据库）：这个系统的功能是模拟ATM机的登陆、取款、更改密码等功能，利用了多线程、JDBC接口、GUI。 -ATM Simulation System (Java and database) : The system's function is simulated landing ATM machine, withdrawals, change passwords, and other functions, use of the multi-thread,