The program must include two classesclGradesGraph and GradesGrapghDemo. GradesGraphDemo (one method)- Main method only GradesGraph- Include at least 4 methods (No credits without at least 4 methods!!!) Create a class that represents the grade distribution for a given course. In this class you should write methods to perform the following tasks: Read the number of each of the letter grades A, B, C D and F Set the number of letter grades A, B, C, D and F Return the total number of grades Return the percentage of each letter grade as a whole number between 0 and 100 inclusive Draw a bar graph of the grade distribution The graph should have five bars, one per grade. Each bar can be a horizontal row of asterisks, such that the number of asterisks in a row is proportionate to the percentage of grades in each category. For example, let on asterisk represent 2%, so 50 asterisks correspond to 100%. Mark the horizontal axis at 10% increments from 0 to 100% and label each line with a letter grade. For example, if the grades are entered as 1A, 4B's, 6C's, 2D's and 1 F, the total number of grades is 14, the percentage of As os 7, the percentage of Bs is 29, the percentage of Cs is 43, the percentage of Ds is 14, and the percentage of Fs is 7. The A row would contain 4 asterisks (7 percent of 50 rounded to the nearest integer), the ab roe 14, the C row 21, the D row 7, and the F row 4. The graph would look like this: 0 10 20 30 40 50 60 70 80 90 100% | | | | | | | | | | | ************************************************** **** A ************** B ******************** C ****** D **** F
The program must include two classesclGradesGraph and GradesGrapghDemo.
- GradesGraphDemo (one method)- Main method only
- GradesGraph- Include at least 4 methods (No credits without at least 4 methods!!!)
Create a class that represents the grade distribution for a given course. In this class you should write methods to perform the following tasks:
Read the number of each of the letter grades A, B, C D and F
Set the number of letter grades A, B, C, D and F
Return the total number of grades
Return the percentage of each letter grade as a whole number between 0 and 100 inclusive
Draw a bar graph of the grade distribution
The graph should have five bars, one per grade. Each bar can be a horizontal row of asterisks, such that the number of asterisks in a row is proportionate to the percentage of grades in each category. For example, let on asterisk represent 2%, so 50 asterisks correspond to 100%. Mark the horizontal axis at 10% increments from 0 to 100% and label each line with a letter grade.
For example, if the grades are entered as 1A, 4B's, 6C's, 2D's and 1 F, the total number of grades is 14, the percentage of As os 7, the percentage of Bs is 29, the percentage of Cs is 43, the percentage of Ds is 14, and the percentage of Fs is 7. The A row would contain 4 asterisks (7 percent of 50 rounded to the nearest integer), the ab roe 14, the C row 21, the D row 7, and the F row 4. The graph would look like this:
0 10 20 30 40 50 60 70 80 90 100%
| | | | | | | | | | |
**************************************************
**** A
************** B
******************** C
****** D
**** F
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