Specifications

Back in our main program, we report to the user whether she was logged in or not, and at
what level.
The output from one login attempt is shown in Figure 28.6.
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FIGURE 28.6
The system reports to the user that login was successful.
Now that we have logged in a user, we can proceed to the user functions.
Implementing User Functions
There are five things we want our users to be able to do after they have logged in:
• Look at the lists available for subscription
• Subscribe and unsubscribe from lists
• Change the way their accounts are set up
• Change their passwords
• Log out
You can see most of these options in Figure 28.6. We will now look at the implementation of
each of these options.
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