InputCalculator.java

package com.TimBuchalka;

//Write a method called inputThenPrintSumAndAverage that does not have any parameters. The method should
//not return anything (void) and it needs to keep reading int numbers from the keyboard. When the user
//enters something that is not an int then it needs to print a message in the format "SUM = XX AVG = YY".
//
//XX represents the sum of all entered numbers of type int. YY represents the calculated average of all
//numbers of type long.
//
//EXAMPLES OF INPUT/OUTPUT:
//EXAMPLE 1:
//INPUT:
//1
//2
//3
//4
//5
//a
//
//OUTPUT
//SUM = 15 AVG = 3
//
//EXAMPLE 2:
//INPUT:
//hello
//
//OUTPUT:
//
//SUM = 0 AVG = 0
//
//TIP: Use Scanner to read an input from the user.
//TIP: Use casting when calling the round method since it needs double as a parameter.
//NOTE: Use the method Math.round to round the calculated average (double). The method round returns long.
//NOTE: Be mindful of spaces in the printed message.
//NOTE: Be mindful of users who may type an invalid input right away (see example above).
//NOTE: The method inputThenPrintSumAndAverage should be defined as public static like we have been doing so far in the course.

import jdk.internal.util.xml.impl.Input;

import java.util.Scanner;

public class InputCalculator {
    public static void inputThenPrintSumAndAverage(){
        int sum = 0, count = 0, avg =0;
        Scanner sc = new Scanner(System.in);

        while (true) {
            boolean isInt = sc.hasNextInt();

            if (isInt) {
                int value = sc.nextInt();
                sum += value;
                count++;
            } else if (count == 0){
                System.out.println("SUM = 0 AVG = 0");
                break;
            } else {
                avg = sum/count;
                System.out.println("SUM = " + sum + " AVG = " + avg);
                break;
            }
            sc.nextLine();
        }
        sc.close();
    }
}