Question $2$

Write a C$++$ program that asks the user to enter the number corresponds for a

planet name and their weight on earth $($ in pounds$).$ The chosen planet will be

selected from a menu displayed, and then enter the value for the weight in earth

in pounds.

The program will then calculate and then output the corresponding weight in the

planet selected by multiplying the weight on earth by the weight multiplier for

the planet selected. Weight multipliers are listed in the table below.

The program should output an error message if the user doesn$$t type a valid

number that corresponds to a planet name. $($See sample run below$).$ In addition,

check to ensure that weight is greater than $0.$

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 appropriate comments

in your code. The output should be clearly labeled and neatly formatted.

Planet Name Weight Multiplier

Mercury $0\mathrm{.}4155$

Venus $0\mathrm{.}8975$

Earth $1\mathrm{.}0$

Mars $0\mathrm{.}3507$

Jupiter $2\mathrm{.}5374$

Saturn $1\mathrm{.}0677$

Uranus $0\mathrm{.}8947$

Neptune $1\mathrm{.}1794$

Remember Don$$t Repeat Yourself $($DRY$)$ in your code. If same statements are

repeated in different branches of your if$-$else, then take it out and do it only

once in a common path area of your code $$ where it will be executed all the time

with no conditions.

$4$

A sample run of the program will produce something like this:

$1)$ Mercury

$2)$ Venus

$3)$ Earth

$4)$ Mars

$5)$ Jupiter

$6)$ Saturn

$7)$ Uranus

$8)$Neptune

Enter # for planet: $4$

Enter your weight in pounds: $200$

You will weigh $70\mathrm{.}14$ pounds on planet Mars.

Another sample run of the program will produce something like this, take note

when Invalid values entered, your program will display an error message and then

exit out $($shown below$).$

$1)$ Mercury

$2)$ Venus

$3)$ Earth

$4)$ Mars

$5)$ Jupiter

$6)$ Saturn

$7)$ Uranus

$8)$Neptune

Enter # for planet: $0$

You entered an invalid number; it should be a number from $1$ to $8.$

Another sample run where the planet number is valid but the weight inputted is

invalid. Again, display error message and then exit out.

$1)$ Mercury

$2)$ Venus

$3)$ Earth

$4)$ Mars

$5)$ Jupiter

$6)$ Saturn

$7)$ Uranus

$8)$Neptune

Enter # for planet: $7$

$5$

Enter your weight in pounds: $-100$

Invalid weight. Weight must be greater than $0.$

Test your program to ensure it is working as it is supposed to be$.$

You may use same test values shown above.

Remember to use meaningful names for your variables.

What to submit?

Use same file from Question $1$ above.

Label Question #$2$ in a new page, and then put our source code for question #$2$

below the headingg $($screenshot or copy and paste$).$

Copy paste of source code is fine if all format and indentation are kept.

And then followed by two different screenshots of the outputs when testing your

program with two different sets of input data for planet number and weight.

Remember to check that your outputs are correct.

Lastly, save your source code in case I will ask for it$.$

Take note of how your program will be graded?

a$)$ Specifications $(70\%)$

$-$ Is the program working?

$-$ And has all the requirements being met or not?

b$)$ Readability $(10\%)$

$-$ Code is well organized, indented properly, and very easy to follow

c$)$ Documentation $(10\%)$

$-$ Header comments at top of your program

$-$ Necessary documentation clearly explain what is being done, and close resemble your algorithm

d$)$ Efficiency $(10\%)$

$-$ Code is efficient without sacrificing readability and understanding.