HW: The tasks you have to do:

Make sure you complete your lab tasks.

Develop a new activity for updating the SharedPreferences data. Two tasks are to be done for that:

o The user can access the newly created activity after his\her credentials are authenticated, so add a new button for that to the main activity.

o By accessing the new activity, the user can modify the password. The code you would write is similar to the one about creating a new user account. It is just the user name you have to make sure it does match before the password gets changed.