How to find the sum of all the numbers entered before or after finding the Sorted array list?

Question

I have written a program in ArrayList to find the sorted array. But I have to find the sum of the numbers entered as well.

I couldn't succeed in getting the results as it is in the array list

import java.util.ArrayList;
import java.util.Scanner;

public class project1 {

public static void main(String[] args) {

int add = 0;
    Scanner input = new Scanner(System.in);
    System.out.print("Enter 5 numbers: ");
    ArrayList<Integer> list = new ArrayList<>();
    for (int i = 0; i < 5; i++) list.add(input.nextInt());

    System.out.println("add" +add);
    System.out.println("Sorting numbers...");
    sort(list);
    System.out.println("Displaying numbers...");
    System.out.println(list);

}

public static void sort(ArrayList<Integer> list) {
    for (int i = 0; i < list.size() - 1; i++) {
        int currentMin = list.get(i);
        int currentIndex = i;

        for (int j = i + 1; j < list.size(); j++) {
            if (currentMin > list.get(j)) {
                currentMin = list.get(j);
                currentIndex = j;
            }
        }

       if (currentIndex != i) {
            list.set(currentIndex, list.get(i));
            list.set(i, currentMin);
        }
    }
}
}

I am looking to get the sum of the entered numbers along with sorting. Any help will be very appreciated.

while getting user inputs you can get sum of it. with help of empty variable. — jay sedani, Jun 16 '19 at 15:47
Possible duplicate of [Sum all the elements java arraylist](https://stackoverflow.com/questions/16242733/sum-all-the-elements-java-arraylist) — Joakim Danielson, Jun 16 '19 at 15:55

score 0 · Answer 1 · answered Jun 16 '19 at 15:46

change this

    for (int i = 0; i < 5; i++) list.add(input.nextInt());

to this

    int sum  = 0;

    for (int i = 0; i < 5; i++){
      int num = input.nextInt();
      list.add(num);
      sum += num;
   }

the value of the sum is saved inside sum and you can do what ever you want with it. I am using the For loop to add the values the user entered to a var name sum that is located out side of the for loop and when the for loop is done you have the sum

score 0 · Answer 2 · answered Jun 16 '19 at 15:53

0

You could just write sum += currentMin at the bottom of the for (int i; ... loop. This way you count every number exactly once, after it is put in its final place.

answered Jun 16 '19 at 15:53

Feuerrabe

11
2

score -1 · Accepted Answer · answered Jun 16 '19 at 15:47

-1

 ArrayList<Integer> list = new ArrayList<>();
int sum = 0
for (int i = 0; i < 5; i++) {
int in = input.nextInt();
sum = sum + in;
list.add(in);
 }

answered Jun 16 '19 at 15:47

user3411846

178
1
3
13

@AbhishekDS Strange. This doesn't do what you asked. *I am looking to get the sum of the entered numbers along with sorting.* I don't see a sort anywhere? – WJS Jun 16 '19 at 16:18

How to find the sum of all the numbers entered before or after finding the Sorted array list?

3 Answers3