Grade.java

import java.util.Scanner;

  public class Grade{
     public static void main(String[] args){
         
	Scanner input = new Scanner(System.in);
	
	System.out.print("Enter your grade(A-F): ");
	String letter = input.nextLine();
	 
	switch(letter){
	 case "a":
	 case "b":
	 case "c":
	 case "d":System.out.print("pass");break;
	 case "e":System.out.print("fair");break;
	 case "f":System.out.print("failed");break;
	 default:System.out.print("invalid");break;
	}

	}
}

/*
         Student's grade
 prompt the user to enter their grade (A-f)
  create a variable that reads the  users input

  check if the user enter (A- D) 
 print "pass"

check if the user enter (e)
print"fair"

check if the user enter (f)
print "failed" 

else "invalid"