Some notebooks allow you to remove the battery because the battery bay doubles as an expansion bay for a floppy drive, CD-ROM or another hard drive but require you to be plugged into an AC outlet. Other notebooks require that the battery be in place to complete the power circuit. laptop can run without the battery. The other source would be the AC adapter. It can't damage the laptop if you don't use the battery. If you use only the AC adapter, make sure you don't unplug it while you're using the laptop because you will lose all of your data. Scotty Â· 8 years ago.
To remove duplication, you decide to create a base proxy class, and override only required methods. Here's what your refactoring looks like: SecurityProxyMembershipProvider is now much more simple, with 2 methods to override instead of 4, LogProxyMembershipProvider with 1 method instead of 4.
An advantage of a proxy server is that its cache can serve all users. If one or more Internet sites are frequently requested, these are likely to be in the proxy's cache, which will improve user response time. A proxy can also log its interactions, which can be helpful for troubleshooting.