一个用Java实现的进度控制条的例子，方便状态显示等操作-a Java control to achieve the progress of the case, to facilitate operational status display

a progra made use java.awt.*

一个简单的登录条，可以验证你登录，并修改用户名和密码，纯粹的简单的小java程序-A simple login bar, you can verify that you are logged in, and modify the user name and password, the pure simple small java program