Program Store Input Of Rainfall For Each Month - Print Out Month With Least And Most Rainfall

May 1, 2014

I have written program for rainfall that will store and give total, average, least and most. The program stores the input of rainfall for each month. However at the end it suppose to print out the month with the least and most rainfall. I am getting this on the print for

The month with the most rainfall: [Ljava.lang.String;@79a7bd3b

and for

The month with the least rainfall: [D@7378aae2[Ljava.lang.String;@79a7bd3b

. What have i done wrong?

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Parallel Arrays - User Input Integer 1-12 / Output Name Of Month And Number Of Days In That Month

May 11, 2015

I've been working on a question using parallel arrays where the user inputs an integer 1-12 and the output will be the name of the month and the number of days in that month. This is what I have so far

import java.util.*;
public class DaysMonth
{
public static void main (String args[]) {
Scanner keyIn = new Scanner(System.in);
int[] days = new int[]{31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};

[Code] ....

After I enter the user int it just ends.

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"Create a project called RainFall and a class nameD RainFall. Write a program that stores the total rainfall for each of 12 months into an array of doubles. The program should display total rainfall for the year, the average monthly rainfall, the month with the most rain and the month with the least rain. When outputting the month with the most and least rain, output the name of the month. This is what I have so far.

Scanner keyboard = new Scanner(System.in);
double averageMonthly;
double mostRain;
double leastRain;
int months;
double monthlyRain = 0;
double totalRain = 0;

[Code] ....

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I am assigned with a project that will as the user for the amount of days they would like data entered, then loop asking them for these numbers. once it reaches the entered amount of days it will display a menu for which the user can enter the number they want on the list and it will display the data. the menu has 6 items. Total, Average, Determine if its a Drought, Flood or normal rainfall, highest of data entered, lowest of data entered, and 6 is to quit the program.

So far i have total and average working properly. Still looking at how to display drought, flood, and normal.

Main problems, i cannot get highest and lowest to display correct data.

Also when entering 6, or an invalid menu choice, neither "goodbye" or "invalid choice, choose again" gets printed. Rather the loop for entering data continues.

import java.util.Scanner;
public class RainAnalysis {
/*
* Project 1 This program will analyze the rainfall for the number of days a user inputs.
*/
 
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
int numOfDays = 0;
double rainfallAmount = 0.0;

[Code] ....

Here is a sample output to show what happens when i put in 6 after the menu is displayed.

also i noticed that it does not say the correct day when displaying the lowest and highest rainfall. this is because i put count, i did not know what else to put in order to get the correct day.

how many days do you want to monitor rainfall?5

Enter the rainfall for day 1.01
Enter the rainfall for day 2.1
Enter the rainfall for day 36
Enter the rainfall for day 43
Enter the rainfall for day 51

Rainfall Data Display Menu:
1 - Display total rainfall.
2 - Display rain average for the period.
3 - Display if drought, flood, or normal conditions.
4 - Display the day and amount of the highest rainfall.
5 - Display the day and amount of the lowest rainfall.
6 - Quit the program.

Enter your choice:
4
Day5 has the highest rainfall with 6.0 inches.

Rainfall Data Display Menu:
1 - Display total rainfall.
2 - Display rain average for the period.
3 - Display if drought, flood, or normal conditions.
4 - Display the day and amount of the highest rainfall.
5 - Display the day and amount of the lowest rainfall.
6 - Quit the program.

Enter your choice:
5
Day5 has the lowest rainfall with 0.1 inches.

Rainfall Data Display Menu:
1 - Display total rainfall.
2 - Display rain average for the period.
3 - Display if drought, flood, or normal conditions.
4 - Display the day and amount of the highest rainfall.
5 - Display the day and amount of the lowest rainfall.
6 - Quit the program.

Enter your choice:
6
Enter the rainfall for day 6

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[Code] ....

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When asked to input rainfall, in inches, for each month, I begin with input -3, I am again prompted to re-enter a positive, I enter 3. What happens is, whichever positive integer I input after I had entered a negative for the first months rainfall, the average would be off by the positive number inputted.

package averagerainfall;
import java.util.Scanner;
public class AverageRainfall
{
public static void main(String[] args)
{
int maxYears;
int totalMonths;

[Code] ....

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And the code:

double rain[] = new double [12];
double sum;
double average;
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[code]....

I'm having a problem with figuring out how to show which month is the least and most.

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[Code] ....

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I typed '[code]' below:
Java Code: /**
This program demostrates rainfall for a year
*/

[Code].....

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[Code] ....

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You may use the following code to test your class.

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[Code] ....

So what I have added so far is (under public class month { :)

Java Code:

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