File list (Check if you may need any files):
ruan1\build.xml
.....\build
.....\.....\classes
.....\.....\.......\biz
.....\.....\.......\...\EmpBiz.class
.....\.....\.......\...\ManBiz.class
.....\.....\.......\entity
.....\.....\.......\......\Emp.class
.....\.....\.......\......\Manager.class
.....\.....\.......\io
.....\.....\.......\..\EmpIO.class
.....\.....\.......\menu
.....\.....\.......\....\EmpMenu.class
.....\.....\.......\....\MainMenu.class
.....\.....\.......\....\SysMenu.class
.....\.....\.......\system
.....\.....\.......\......\Test.class
.....\emp.txt
.....\man.txt
.....\nbproject
.....\.........\build-impl.xml
.....\.........\genfiles.properties
.....\.........\private
.....\.........\.......\private.properties
.....\.........\.......\private.xml
.....\.........\project.properties
.....\.........\project.xml