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sloth53
sloth53
24.09.2020 • 
Computers and Technology

Write a program to read a list of exam scores given as integer percentages in the range 0-100. Display the total number of grades in each letter grade defined as follows:90-100 is an A, 80-89 is a B, 70-79 is a C, 60-69 is a D, 0-59 is an F. Use a negative score as a sentinel to indicate the end of the input. (The negative value is used just to end the loop, do not use it in the calculations). Then output the highest and lowest score, and the average score.For example if the input is: 72 98 87 50 70 86 85 78 73 72 72 66 63 85 -1the output would be:Total number of grades = 14Number of As =1Number of Bs = 4Number of Cs = 6Number of Ds = 2Number of Fs = 1The highest score is 98The lowest score is 50The average is 75.5This is what I have so far and it is not working correctly:public static void main(String[] args) {// scannerScanner scnr =new Scanner (System.in);//ints grades and countint x;int A = 0;int B = 0;int C = 0;int D = 0;int F = 0;int count = 1;//int min max totalint min, max;int total = 0 ;//doubledouble average;//prompt user for inputSystem.out.print("Please enter the exam scores as integer ");System.out.print("percentages in the rage 0-100. ");System.out.println("Please end the list with a negative integer.");//scnrx = scnr.nextInt();min = x;max = x;//while loopwhile (x >= 0){x = scnr.nextInt();if (x >= 0){total = total + x;count++;if (x < min)min = x;if (x > min)max = x; }while (x >= 90 && x <= 100) {x = scnr.nextInt();A++;//Grade Bif (x >= 80 && x <= 89)B++;//Grade Cif (x >= 70 && x <= 79)C++;//Grade Dif (x >= 60 && x <= 69)D++;//Grade Fif (x >= 0 && x <= 59)F++;}}// averageaverage = total/count;//results/outputSystem.out.println("Total number of grades: " + count);System.out.println("Number of A's: " + A);System.out.println("Number of B's: " + B);System.out.println("Number of C's: " + C);System.out.println("Number of D's: " + D);System.out.println("Number of F's: " + F);System.out.println("Highest score: " + max);System.out.println("Lowest score: " + min);System.out.println("Average: " + average);}}

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