import java.util.Scanner;
public class GradeCalc
{
   public static void main(String[] args)
   {
      Scanner kb = new Scanner(System.in);

      //Declare variables
      final double MAX = 100;
      final double MIN = 0;
      double programAssign;
      double labs= -1;
      double mpl= -1;
      double midterms =-1;
      double finalExam =-1;
      System.out.println("GradeCalc");
      System.out.println("This application calculates the letter grade in CSC110 based on user inputs");
      System.out.println("\tNOTE: All inputs should be in the range of 0 to 100, inclusive.");
      System.out.println(" ");

      System.out.print("Enter Programming Assignments percentage earned: ");
      programAssign = kb.nextDouble();
      if (programAssign <= MAX && programAssign >= MIN) {
         System.out.print("Enter Lab Assignments percentage earned: ");
         labs = kb.nextDouble();
      }
      else if (programAssign > MAX || programAssign < MIN) {
      System.out.println("Input error: Programming assignments percentage out of range.");
      }
      if (labs <= MAX && labs >= MIN) {
         System.out.print("Enter MPL Homework percentage earned: ");
         mpl = kb.nextDouble();
      }
      else if (labs > MAX || labs < MIN) {
         System.out.print("Input error: Lab Assignments out of range.");
      }
      if (mpl <= MAX && mpl >= MIN) {
         System.out.print("Enter midterms percentage earned: ");
         midterms = kb.nextDouble();
      }
      else if (mpl > MAX || mpl < MIN) {
      System.out.print("Input error: MPL Homework percentage out of range.");
      }
      if (midterms <= MAX && midterms >= MIN) {
         System.out.print("\nEnter Final exam percentage earned: ");
         finalExam = kb.nextDouble();
      }
   }
}