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Java ArrayList Sum Elements

Submitted by Ragi Patel on Thu, 11/11/2010 - 14:45

Calculate sum of all elements of an ArrayList.

import java.util.ArrayList;
 
//Java ArrayList Sum All Elements
public class ArrayListSumElements {
    
    public static void main(String args[]){
       
        //create new ArrayList
        ArrayList<String> aListNumbers = new ArrayList<String>();
        aListNumbers.add("1");
        aListNumbers.add("2");
        aListNumbers.add("3");
       
        //Java ArrayList Sum All Elements
       
        int sum = 0;
        for(int i=0; i < aListNumbers.size(); i++){
            sum = sum + Integer.parseInt(aListNumbers.get(i));
        }
           
        System.out.println("Sum of all elements of ArrayList is " + sum);
    }
}