Question

Write a program that calculates the average rainfall for three months. The program should ask the user to enter the name of each month, such as June or July, and the amount of rain (in inches) that fell each month. The program should then display the average of the three rainfall amounts, rounded to 2 decimal places.

Answer 1

Answer:

import java.util.Scanner;

public class ANot {

   public static void main(String[] args) {

   Scanner input = new Scanner(System.in);

       System.out.println("Enter the month name:");

       String month1 = input.next();

       System.out.println("Enter the amount of rain for "+month1);

       double month1Rain = input.nextDouble();

       System.out.println("Enter the second month: ");

       String month2 = input.next();

       System.out.println("Enter the amount of rain for "+month2);

       double month2Rain = input.nextDouble();

       System.out.println("Enter the Third month: ");

       String month3 = input.next();

       System.out.println("Enter the amount of rain for "+month3);

       double month3Rain = input.nextDouble();

       double averageRainfall = (month1Rain+month2Rain+month3Rain)/3;

       System.out.printf("Average Rainfall is: %,.2f  ", averageRainfall);

   }

}

Explanation:

This is written in Java Programming language

1. Import  the scanner class to prompt user for the inputs (Months and amount of rainfall for each month)
2. Find the average of the three rainfall amount by adding up and dividing by 3
3. Output the average. Pay particular attention to the use of java's printf in order to print the average to 2 decimal places