CSC160 Assignment 4 solved

Description

Provide a complete program that handles the entry and display of homework scores. As part of your program, provide a HwScore class that contains the points earned on a particular homework and also the maximum possible points on that homework. In order to keep track of the overall average, the HwScore class also contains the total points earned on all homework combined and the total possible points on all homework combined. In order to determine letter grades, the HwScore class specifies cutoff values for the A, B, C, and D letter grades.

More specifically, the HwScore class should contain these constants and variables:

• *Named constants for the letter grade cutoffs: A = 0.9, B = 0.8, C = 0.7, D = 0.6

• *Class variables named totalEarnedPoints and totalPossiblePoints

• *Instance variables named earnedPoints and possiblePoints

The HwScore class should contain:

• A two-parameter constructor that handles initializations for the earnedPoints and possiblePoints instance variables.

• A printGrade method that prints a particular homework’s earned points, possible points, and letter grade. The letter grade is based on this scale:

  • A ≥ 90%

  • B ≥ 80%

  • C ≥ 70%

  • D ≥ 60%

  • F < 60%

• A class method named printOverallGrade that prints the overall earned points, overall possible points, and overall letter grade.

Additional requirements:

• Use appropriate modifiers for methods (private, public, static).

• Use helping methods when appropriate.

Provide a main driver method. It should:

1. Instantiate four HwScore objects with these values:

   • hw1: 26.5 earned points, 30 possible points

   • hw2: 29 earned points, 27.5 possible points

   • hw3: 0 earned points, 20 possible points

   • hw4: 16 earned points, 20 possible points

2. Call printGrade for hw1, hw2, and hw3 (but not hw4).

3. Call printOverallGrade.