Java Homework(Grade system)

I actually did the average part for you since I was bored:

Code:

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import java.util.Scanner;


public class Main {

        public double total = 0, count = 0;
        public double calculateAverage() {
                double result = total / count;
                return result;
        }
        public static void main(String[] args) {
                boolean shouldContinue = false;
                int mark = 0;
                Scanner scanner = new Scanner(System.in);
                do {
                        System.out.printIn("Enter your points:");
                        try {
                                mark = scanner.nextInt();
                                if(mark >= 90) {
                                        System.out.println("You got an A!");
                                        System.out.println("Would you like to continue? (yes/no) ");
                                        total = total + mark;
                                        count++;
                                } else {
                                        System.out.println("You got less than an A.");
                                        System.out.println("Would you like to continue? (yes/no) ");
                                }
                                       
                        } catch(NumberFormatException e) {
                                System.out.printIn("Wrong Format");
                        }
                       
                        scanner.nextLine();
                        if(scanner.nextLine().contains("yes")) {
                                shouldContinue = true;
                        } else if(scanner.nextLine().contains("no")) {
                                shouldContinue = false;
                                System.out.printIn("Your grade average is: " + calculateAverage());
                        } else {
                                shouldContinue = false;
                        }
                       

                } while(shouldContinue);
                System.out.println("Your first mark is: "+mark);
        }
       
               
}

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To do this part

Quote:

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The first grade is: A with points 90
The second grade is: A with points 100

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You have to use arrays, which should be easier

allScores = new int[i];

allScores[x] = y;

and so on, just calculate the average using the array values in the end.

Quote:

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Originally Posted by Benjii [Only registered and activated users can see links. Click Here To Register...]

I actually did the average part for you since I was bored:

Code:

---

import java.util.Scanner;


public class Main {

        public double total = 0, count = 0;
        public double calculateAverage() {
                double result = total / count;
                return result;
        }
        public static void main(String[] args) {
                boolean shouldContinue = false;
                int mark = 0;
                Scanner scanner = new Scanner(System.in);
                do {
                        System.out.printIn("Enter your points:");
                        try {
                                mark = scanner.nextInt();
                                if(mark >= 90) {
                                        System.out.println("You got an A!");
                                        System.out.println("Would you like to continue? (yes/no) ");
                                        total = total + mark;
                                        count++;
                                } else {
                                        System.out.println("You got less than an A.");
                                        System.out.println("Would you like to continue? (yes/no) ");
                                }
                                       
                        } catch(NumberFormatException e) {
                                System.out.printIn("Wrong Format");
                        }
                       
                        scanner.nextLine();
                        if(scanner.nextLine().contains("yes")) {
                                shouldContinue = true;
                        } else if(scanner.nextLine().contains("no")) {
                                shouldContinue = false;
                                System.out.printIn("Your grade average is: " + calculateAverage());
                        } else {
                                shouldContinue = false;
                        }
                       

                } while(shouldContinue);
                System.out.println("Your first mark is: "+mark);
        }
       
               
}

---

To do this part


You have to use arrays, which should be easier

allScores = new int[i];

allScores[x] = y;

and so on, just calculate the average using the array values in the end.

---

not for me but thanks for the script, just one more thing to go!
thanks + rep++

Just a tip, most teachers expect java homework to be properly commented..

edit: also you should probably include more grades then just 'A'

Quote:

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Originally Posted by Clifton [Only registered and activated users can see links. Click Here To Register...]

Just a tip, most teachers expect java homework to be properly commented..

edit: also you should probably include more grades then just 'A'

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Yes i know that, thanks for the tip;)

waiting for a better solution

Code:

---

import java.util.Scanner;

public class Main {

    public static double total = 0, count = 0, totalAverage;
    public static String totalAverageResult;

    public static double calculateAverage() {
        double result = total / count;
        return result;
    }

    public static void main(String[] args) {
        boolean shouldContinue = false;
        int mark;
        System.out.println("Enter a grade:");
        Scanner scanner = new Scanner(System.in);
        do {
            mark = scanner.nextInt();
            if(mark >= 90 && mark <= 100) {
                System.out.println("You got an A.");
            } else if(mark >= 80) {
                System.out.println("You got a B.");
            } else if(mark >= 70) {
                System.out.println("You got a C.");
            } else if(mark >= 60) {
                System.out.println("You got a D.");
            } else {
                System.out.println("You got an F.");
            }
            System.out.println("Enter more grades? (yes/no):");
            total = total + mark;
            count++;
            scanner.nextLine();
            if(scanner.nextLine().equalsIgnoreCase("yes")) {
                System.out.println("Enter a grade:");
                shouldContinue = true;
            } else {
            totalAverage = calculateAverage();
            if(totalAverage >= 90 && totalAverage <= 100) {
                totalAverageResult = "A";
            } else if(totalAverage >= 80) {
                totalAverageResult = "B";
            } else if(totalAverage >= 70 ) {
                totalAverageResult = "C";
            } else if(totalAverage >= 60) {
                totalAverageResult = "D";
            } else {
                totalAverageResult = "F";
            }
                System.out.println("Your average grade is: " + calculateAverage() + ", which is a " + totalAverageResult + ".");
                shouldContinue = false;
            }
        } while(shouldContinue);
    }

}

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Not the cleanest code, but it does the job, supports all letter grades, and even tells you the letter grade of the averaged total.

Precompiled: [Only registered and activated users can see links. Click Here To Register...]

what if suddenly he wanted to add the support of more specific grades, such as A+, or C-?

Code:

---

import java.util.Scanner;

public class Main {

    public static double total = 0, count = 0, totalAverage;
    public static String totalAverageResult;

    public static double calculateAverage() {
        double result = total / count;
        return result;
    }

    public static void main(String[] args) {
        boolean shouldContinue = false;
        int mark;
        System.out.println("Enter a grade:");
        Scanner scanner = new Scanner(System.in);
        do {
            mark = scanner.nextInt();
            if(mark > 95 && mark <= 100) {
                System.out.println("You got an A+.");
            } else if(mark == 95) {
                System.out.println("You got an A.");
            } else if(mark >= 90 && mark < 95) {
                System.out.println("You got an A-.");
            } else if(mark > 85 && mark < 90) {
                System.out.println("You got a B+.");
            } else if(mark == 85) {
                System.out.println("You got a B.");
            } else if(mark >= 80 && mark < 85) {
                System.out.println("You got a B-.");
            } else if(mark > 75 && mark < 80) {
                System.out.println("You got a C+.");
            } else if(mark == 75) {
                System.out.println("You got a C.");
            } else if(mark >= 70 && mark < 75) {
                System.out.println("You got a C-.");
            } else if(mark > 65 && mark < 70) {
                System.out.println("You got a D+.");
            } else if(mark == 65) {
                System.out.println("You got a D.");
            } else if(mark >= 60 && mark < 65) {
                System.out.println("You got a D-.");
            } else {
                System.out.println("You got an F.");
            }
            System.out.println("Enter more grades? (yes/no):");
            total = total + mark;
            count++;
            scanner.nextLine();
            if(scanner.nextLine().equalsIgnoreCase("yes")) {
                System.out.println("Enter a grade:");
                shouldContinue = true;
            } else {
            totalAverage = calculateAverage();
            if(totalAverage > 95 && totalAverage < 100) {
                totalAverageResult = "A+";
            } else if(totalAverage == 95) {
                totalAverageResult = "A";
            } else if(totalAverage >= 90 && totalAverage < 95) {
                totalAverageResult = "A-";
            } else if(totalAverage > 85 && totalAverage < 90) {
                totalAverageResult = "B+";
            } else if(totalAverage == 85) {
                totalAverageResult = "B";
            } else if(totalAverage >= 80 && totalAverage < 85) {
                totalAverageResult = "B-";
            } else if(totalAverage > 75 && totalAverage < 80) {
                totalAverageResult = "C+";
            } else if(totalAverage == 75) {
                totalAverageResult = "C";
            } else if(totalAverage >= 70 && totalAverage < 75) {
                totalAverageResult = "C-";
            } else if(totalAverage > 65 && totalAverage < 70) {
                totalAverageResult = "D+";
            } else if(totalAverage == 65) {
                totalAverageResult = "D";
            } else if(totalAverage >= 60 && totalAverage < 65) {
                totalAverageResult = "D-";
            } else {
                totalAverageResult = "F";
            }
                System.out.println("Your average grade is: " + calculateAverage() + ", which is a " + totalAverageResult + ".");
                shouldContinue = false;
            }
        } while(shouldContinue);
    }

}

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Added more specific grading, such as A+ or C-, does this for the final average too.

Precompiled: [Only registered and activated users can see links. Click Here To Register...]

Use arrays, then learn through various JAVA tutorials.

Quote:

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Originally Posted by snwspeckle [Only registered and activated users can see links. Click Here To Register...]

Use arrays, then learn through various JAVA tutorials.

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Stop trying to sound smart, it's failing

Quote:

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Added more specific grading, such as A+ or C-, does this for the final average too.

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cool (y)