Finds the Weighted Average GPA for Classes (Specific School Standard)

great_grader.java

import java.util.Scanner;
public class grader {

	static Scanner n = new Scanner(System.in);
	static Scanner s = new Scanner(System.in);
	static Scanner c = new Scanner(System.in);
	
	
	public static void displayTitle() {
		System.out.println("");
		System.out.println("================");
		System.out.println("| Great Grader |");
		System.out.println("================");
		System.out.println("Created by AwlsomeAlex [GPLv3]");
		System.out.println("Designed for AP Computer Science");
		System.out.println("");
	}
	
	public static String getLetter() {
		String letter;
		System.out.print("Please type the Grade in this class: ");
		double grade = n.nextDouble();
		if (grade >= 95.5)
			letter = "A+";
		else if (grade >= 91.5)
			letter = "A";
		else if (grade >= 87.5)
			letter = "B+";
		else if (grade >= 83.5)
			letter = "B";
		else if (grade >= 79.5)
			letter = "C+";
		else if (grade >= 75.5)
			letter = "C";
		else if (grade >= 71.5)
			letter = "D+";
		else if (grade >= 67.5)
			letter = "D";
		else
			letter = "F";
		return letter;
	}
	
	public static String getWeight() {
		System.out.print("Please type the weight of this class ('r' = CP, 'h' = Honors, 'a' = AP): ");
		String weight = null;
		char option = c.next().charAt(0);
		if (option == 'r')
			weight = "CP";
		else if (option == 'h')
			weight = "Honors";
		else if (option == 'a')
			weight = "AP";
		else {
			System.out.println("ERROR: Invalid Weight! Exitting...");
			System.exit(1);
		}
		return weight;
		
	}
	public static double getGPA(String letter, String weight) {
		double GPA = 0.0;
		if (letter == "A+")
			GPA = 4.5;
		else if (letter == "A")
			GPA = 4.0;
		else if (letter == "B+")
			GPA = 3.5;
		else if (letter == "B")
			GPA = 3.0;
		else if (letter == "C+")
			GPA = 2.5;
		else if (letter == "C")
			GPA = 2.0;
		else if (letter == "D+")
			GPA = 1.5;
		else if (letter == "D")
			GPA = 1.0;
		else if (letter == "F")
			GPA = 0.0;
		if (weight == "Honors")
			GPA = GPA + 1.0;
		else if (weight == "AP")
			GPA = GPA + 1.5;
		System.out.println("===================================================");
		return GPA;
		
	}
	
	public static String getCourse() {
		String course;
		System.out.println("");
		System.out.println("===================================================");
		System.out.print("Please type the name of this class: ");
		course = s.nextLine();
		return course;
	}
	
	public static double calcGPA(double gpa1, double gpa2, double gpa3, double gpa4, double gpa5, double gpa6, double gpa7, double gpa8) {
		double finalGPA = (gpa1+gpa2+gpa3+gpa4+gpa5+gpa6+gpa7+gpa8)/8;
		return finalGPA;
	}
	
	public static void main(String[] args) {
		displayTitle();
		System.out.print("Please type your Name: ");
		String name = s.nextLine();
		String c1N = getCourse();
		String c1L = getLetter();
		String c1W = getWeight();
		double c1GPA = getGPA(c1L, c1W);
		String c2N = getCourse();
		String c2L = getLetter();
		String c2W = getWeight();
		double c2GPA = getGPA(c2L, c2W);
		String c3N = getCourse();
		String c3L = getLetter();
		String c3W = getWeight();
		double c3GPA = getGPA(c3L, c3W);
		String c4N = getCourse();
		String c4L = getLetter();
		String c4W = getWeight();
		double c4GPA = getGPA(c4L, c4W);
		String c5N = getCourse();
		String c5L = getLetter();
		String c5W = getWeight();
		double c5GPA = getGPA(c5L, c5W);
		String c6N = getCourse();
		String c6L = getLetter();
		String c6W = getWeight();
		double c6GPA = getGPA(c6L, c6W);
		String c7N = getCourse();
		String c7L = getLetter();
		String c7W = getWeight();
		double c7GPA = getGPA(c7L, c7W);
		String c8N = getCourse();
		String c8L = getLetter();
		String c8W = getWeight();
		double c8GPA = getGPA(c8L, c8W);
		double finalGPA = calcGPA(c1GPA, c2GPA, c3GPA, c4GPA, c5GPA, c6GPA, c7GPA, c8GPA);
		System.out.println("");
		displayTitle();
		System.out.println("============================================");
		System.out.println("| "+ name);
		System.out.println("--------------------------------------------");
		System.out.println("| "+c1W+ " "+c1N+ ": "+c1L);
		System.out.println("| "+c2W+ " "+c2N+ ": "+c2L);
		System.out.println("| "+c3W+ " "+c3N+ ": "+c3L);
		System.out.println("| "+c4W+ " "+c4N+ ": "+c4L);
		System.out.println("| "+c5W+ " "+c5N+ ": "+c5L);
		System.out.println("| "+c6W+ " "+c6N+ ": "+c6L);
		System.out.println("| "+c7W+ " "+c7N+ ": "+c7L);
		System.out.println("| "+c8W+ " "+c8N+ ": "+c8L);
		System.out.println("--------------------------------------------");
		System.out.println("| Your Weighted GPA: "+ finalGPA);
		System.out.println("============================================");

	}

}