//-----------------------------------------------------------------------------
// Grades Example
//-----------------------------------------------------------------------------

import java.text.DecimalFormat;

public class grades {
    public static void main(String[] args) {

	//---------------------------------------------------------------------
	// Setup for user input
	//---------------------------------------------------------------------
	TokenReader in = new TokenReader(System.in);

	//---------------------------------------------------------------------
	// Declare and initialize variables to store information
	//---------------------------------------------------------------------
	int count;
	double max, min, sum, grade, average;

	// We need a grade to start the analysis
	System.out.print("Enter a grade: ");	

	___________________________________ ;

	count = ____ ;  // count of grades so far
	max = ______ ;  // max grade so far -- use initial grade
	min = ______ ;  // min grade so far -- use initial grade
	sum = ______ ;  // sum of grades so far
	average = __ ;  // average of grades so far

	//---------------------------------------------------------------------
	// Loop for processing input and computing desired values
	// Stop loop when user enters a negative value
	//---------------------------------------------------------------------

	while(___________________) { 

	    //***************************
	    // REPETITION
	    // Echo current grade
	    //***************************


	    //****************************
	    // ACCUMULATION
	    // Count the grades so far
	    // Sum the grades so far
	    //****************************



	    //****************************
	    // CONDITIONAL UPDATE
	    // Determine min/max of grades
	    //****************************










	    //****************************
	    // Input the next grade
	    //****************************




	}

	//---------------------------------------------------------------------
	// Output results
	// Format to two decimal places
	//---------------------------------------------------------------------
	DecimalFormat fmt = new DecimalFormat("0.##");

	if(______________________________________)
	    System.out.println("\nNo values entered");
	else {
	    System.out.println();
	    System.out.println("Number of grades:  " + count);
	    System.out.println("Average of grades: " + fmt.format(sum/count));
	    System.out.println("Maximum grade:     " + max);
	    System.out.println("Minimum grade:     " + min);
	}

    } // method main

} // class grades