Write an address book program that stores your contacts' names and their email addresses. The names and email addresses are originally stored in a file called phonebook.in, in the format: Harry Potter t..d@hogwarts.edu Hermione Granger b..h@hogwarts.edu Ron Weasley r..b@hogwarts.edu Draco Malfoy m..s@hogwarts.edu Severus Snape h..e@hogwarts.edu Albus Dumbledore a..x@hogwarts.edu Your program should read from the file, storing the names and corresponding email addresses in a dictionary as key-value pairs. Then, the program should display a menu that lets the user enter the numbers 1 through 5, each corresponding to a different menu item: 1) look up an email address 2) add a new name and email address 3) change an email address 4) delete a name and email address 5) save address book and exit When the user enters 1, the program should prompt them for a name, and then print the corresponding email address. If there is no dictionary entry under that name, the program should print, "Sorry, no contact exists under that name." When the user enters 2, the program should prompt them for a name and an email address, then add a new key-value pair to the dictionary. When the user enters 3, the program should prompt them for a name and a new email address for that contact. It should change the value of the corresponding dictionary entry to match the new email address. When the user enters 4, the program should prompt them for a name and delete the corresponding dictionary entry. When the user enters 5, the program should write the names and email addresses in alphabetical order by first name to the file phonebook.out.
Write an address book program that stores your contacts' names and their email addresses. The names and email addresses are originally stored in a file called phonebook.in, in the format: Harry Potter t..d@hogwarts.edu Hermione Granger b..h@hogwarts.edu Ron Weasley r..b@hogwarts.edu Draco Malfoy m..s@hogwarts.edu Severus Snape h..e@hogwarts.edu Albus Dumbledore a..x@hogwarts.edu Your program should read from the file, storing the names and corresponding email addresses in a dictionary as key-value pairs. Then, the program should display a menu that lets the user enter the numbers 1 through 5, each corresponding to a different menu item: 1) look up an email address 2) add a new name and email address 3) change an email address 4) delete a name and email address 5) save address book and exit When the user enters 1, the program should prompt them for a name, and then print the corresponding email address. If there is no dictionary entry under that name, the program should print, "Sorry, no contact exists under that name." When the user enters 2, the program should prompt them for a name and an email address, then add a new key-value pair to the dictionary. When the user enters 3, the program should prompt them for a name and a new email address for that contact. It should change the value of the corresponding dictionary entry to match the new email address. When the user enters 4, the program should prompt them for a name and delete the corresponding dictionary entry. When the user enters 5, the program should write the names and email addresses in alphabetical order by first name to the file phonebook.out.
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