//File:  Grades.java
import CSLib.*;
public class Grades
{
	public static void compute()
	{
		//input score
		InputBox in = new InputBox ( "Score" );
		in.setPrompt ( "Enter score (between 0 and 100)" );
		int score = in.readInt ();
		
		//calculate letter grade
		char grade = ' '; //letter
		
		if ( score > 100 || score < 0 )
		{
			out.println ( "You DUMMY!" );
			System.exit (1);
		}
		
		else if ( score >= 90 )
			grade = 'A';
		else if ( score >= 80 )
			grade = 'B';
		else if ( score >= 70 )
			grade = 'C';
		else if ( score >= 60 )
			grade = 'D';
		else
			grade = 'F';
		
		//output results
		OutputBox out = new OutputBox ( "Grade Conversion" );
		out.println ( "Your score was " + score );
		out.println ( "Your grade is " + grade );
	}
}