Requirement 7

Charges

When the user selects show report option then program should show the name of cheapest and expensive company and return to main menu.

Requirement 8

When the user selects Exit System, the value of all variables related to the usage should all be reset to 0. A message reporting this, should be displayed, and then program should be terminated with a goodbye message.

Requirement 9

Modularize the code, correctly using method calls and passing data between methods as parameters.

Requirement 10

Provide proper comments to explain each block of code, proper indentation, proper code layout, meaningful variable names.

Requirement 7 When the user selects show report option then program should show the name of cheapest and expensive company and return to main menu Requirement 8 When the user selects Exit System, the value of all variables related to the usage should all be reset to 0. A message reporting this should be displayed, and then program should be terminated with a goodbye message. Requirement 9 Modularize the code, correctly using method calls and passing data between methods as parameters. Requirement 10 Provide proper comments to explain each block of code, proper indentation, proper code layout, meaningful variable names