What will be the output of the following Java program?

public class SumOfArray

{
    public static void main(String[ ] args) {
        int [ ] arr = new int [ ] {1, 2, 3, 4};
        int sum  = 0;
        for (int i = 0; i < arr.length; i++)
        {
            sum = sum + arr[i];
        }
            
        System.out.println("Sum of all the elements of an arry: " + sum); 
        
    }
}