CODEWITHSUNDEEP
javaloopsaddition
user3390848
user3390848

Reputation: 19

Add numbers from inside a loop to display total outside. Java

I am wondering how to display the total number of rainfall that I took in from user input and add them outside of the loop. This is what I have:

import java.util.Scanner;


public class SecretName {
public static void main(String args[]) {
    Scanner keyboard = new Scanner(System.in);
    int year;
    int rain;
    int count = 0;
    String[]names={"January ","February "};


    System.out.println("Enter the number of years: ");
    year= keyboard.nextInt();

    while (count < year) {


        System.out.println("For year "+ count);


        for(int i = 0; i < names.length; i++){
            System.out.println("Enter the inches of rainfall for "+ names[i]+":");
            rain= keyboard.nextInt();
        }
        count++;

    }
    int numMonths = names.length * year;
    System.out.println("Number of months "+ numMonths);
    System.out.println("Total rainfall "+ rain); //Won't work obviously


}
}

I have everything I need it's just I take in the rainfall, but I don't know how to add all the rains I take in and add them to be displayed outside the loop where I have the line down there. I have a feeling I'm just over looking something simple...

Upvotes: 0

Views: 1084

Answers (2)

Dagont
Dagont

Reputation: 30

Initialize your variables with 0 and do what @Juned Ahsan said

import java.util.Scanner;


public class SecretName {
public static void main(String args[]) {
    Scanner keyboard = new Scanner(System.in);
    int year = 0;
    int rain = 0;
    int count = 0;
String[]names={"January ","February "};


System.out.println("Enter the number of years: ");
year= keyboard.nextInt();

while (count < year) {


    System.out.println("For year "+ count);


    for(int i = 0; i < names.length; i++){
        System.out.println("Enter the inches of rainfall for "+ names[i]+":");
        rain += keyboard.nextInt(); // Is the same as rain = rain + keyboard.nextInt();
    }
    count++;

}
int numMonths = names.length * year;
System.out.println("Number of months "+ numMonths);
System.out.println("Total rainfall "+ rain);


}
}

Upvotes: 0

Juned Ahsan
Juned Ahsan

Reputation: 68725

Probably you just need to replace this:

        rain= keyboard.nextInt();

with

        rain += keyboard.nextInt();

Upvotes: 2

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