Several chapters since Chapter 5 have included Programming Problems that ask you to deve...

Several chapters since Chapter 5 have included Programming Problems that ask you to develop or rewrite a program that outputs the user’s weight on different planets. The goal has been for you to see how the same program can be implemented in different ways. Here we would like you to rewrite the program using a class to represent the planet and its gravity. The class should include a constructor that allows a planet to be specified with a string, using any capitalization (if the string is not a planet name, then Earth should be assumed). The default constructor for the class will create an object representing Earth. The class has an observer operator that takes a weight on Earth as an argument and returns the weight on the planet. It should have a second observer that returns the name of the planet as a string with proper capitalization.

For ease of reference, the information for the original problem is repeated here. The following table gives the factor by which the weight must be multiplied for each planet. The program should output an error message if the user doesn’t type a correct planet name. The prompt and the error message should make it clear to the user how a planet name must be entered. Be sure to use proper formatting and include appropriate comments in your code. The output should be labeled clearly and formatted neatly.