/*
 * File: Grader.java
 * Author: Java, Java, Java
 * Description: This application program illustrates the use of
 *  methods in the java.io.BufferedReader class to perform simple I/O operations
 *  for a keyboard/console interface.  An instance (object) of the BufferedReader
 *  class is created, and it handles the input task for the program.

 *  The program  prompts the user to input 3 exam grades.
 *  It reads the grades, and then computes and reports the exam average. Note
 *  the use of the Integer.parseInt() method to convert the input strings into
 *  integers (ints).
 */

import java.io.*;    // Java I/O classes

public class Grader
{
    public static void main(String argv[]) throws IOException
    {
        BufferedReader input = new BufferedReader
            (new InputStreamReader(System.in));
        String inputString;

        int midterm1, midterm2, finalExam;  // Three exam grades
        float sum;                          // The sum of the 3 grades

        System.out.print("Input your grade on the first midterm: "); // Prompt
        inputString = input.readLine();               // Read a String
        midterm1 = Integer.parseInt(inputString);     // Convert the String to an int
        System.out.println("You input: " + midterm1); // Echo what the user input

        System.out.print("Input your grade on the second midterm: ");
        inputString = input.readLine();
        midterm2 = Integer.parseInt(inputString);
        System.out.println("You input: " + midterm2);
        System.out.print("Input your grade on the final exam: ");
        inputString = input.readLine();
        finalExam = Integer.parseInt(inputString);
        System.out.println("You input: " + finalExam);

        sum = midterm1 + midterm2 + finalExam;         // Compute and report the average
        System.out.print("Your average in this course is ");
        System.out.println(sum/3);                     // Divide sum by 3 for the average
    } // main()
} // Grader