The file must be called (driver program) (Homework Scores file) Example: KenDewe

Question

The file must be called (driver program) (Homework Scores file) Example: KenDeweyProg2.java (driver program) KDHwScore.java (YIHWScore file) Ensure you include ALL files required to make your program compile and run. I would like to see your .java files only. Proper coding conventions required the first letter of the class start with a capital letter and the first letter of each additional word start with a capital letter. 5% Style Requirements Refer to the Java Coding Style Document. Add comments as required for all .java files. 10% Overall Requirements Provide a complete program that handles the entry and display of homework scores. As part of your program, provide a YIHwScore 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 YIHwScore 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 YiHwScore class specifies cutoff values for the A, B, C, and D letter grades. More specifically, the YIHwScore class should contain these constants and variables: Array constant for the letter grade cutoffs: A = 0.9, B = 0.8, C = 0.7, D = 0.6 One dimensional array, only needs to hold the values, not the letters. Class variables named totalEarnedPoints and totalPossiblePoints Instance variables named earnedPoints and possiblePoints YourNameProg2.java Provide a main driver method. It should: Instantiate a 4 element array of YIHwScore and store the values below in this array. In the instantiations, initialize the objects to 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 For hw1, hw2, hw3 and hw4 call printGrade. (instance method) Call printOverallGrade. (class method) 20% YIHwScore.java Within your YiHwScore class, include these requirements: The YIHwScore class should contain a two-parameter constructor that handles initializations for the earnedPoints and possiblePoints instance variables. Implement a printGrade method that prints a particular homework

Explanation / Answer

public class YIHwScore { //class variable static private double totalEarnedPoints=0 , totalPossiblePoints=0; //instance variables private double earnedPoints, possiblePoints; //constructor public YIHwScore(double earned, double possible) { this.setEarnedPoints(earned); this.setPossiblePoints(possible); } //mutators public void setEarnedPoints(double earned) { earnedPoints=earned; totalEarnedPoints+=earnedPoints; } public void setPossiblePoints(double possible) { possiblePoints=possible; totalPossiblePoints+=possiblePoints; } //accessors public double getEarnedPoints() { return earnedPoints; } public double getPossiblePoints() { return possiblePoints; } //functions public void printGrade(){ System.out.print("On this homework, you earned "+earnedPoints+" out of "+possiblePoints+" possible points: "); printLetterGrade(0); } public void printOverallGrade(){ System.out.print("On all homework, you earned "+totalEarnedPoints+" out of "+totalPossiblePoints+" possible points: "); printLetterGrade(1); } private void printLetterGrade(int choice){ double[] minGrade={0.9,0.8,0.7,0.6,0.0}; char[] letter= {'A','B','C','D','F'}; double pct; int i=0; if(choice==0){ pct=earnedPoints/possiblePoints; } else pct=totalEarnedPoints/totalPossiblePoints; while(pct

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