This program pulls numbers out of a string and totals them

Total a string of numbers

import org.junit.Test;

public class BetterProgrammingTaskTest extends junit.framework.TestCase {
    public static String numbers = "5 25 35 5" ;

@Test
    public void testGetSumOfNumbers() throws Exception {
    assertEquals(70, BetterProgrammingTask.getSumOfNumbers(numbers));
    }
}


public class BetterProgrammingTask {

    public static int getSumOfNumbers(String s) {
        /*
          Please implement this method to
          return the sum of all integers found in the parameter String. You can assume that
          integers are separated from other parts with one or more spaces (' ' symbol).
          For example, s="12 some text 3 7", result: 22 (12+3+7=22)
         */
        String[] newNumbers = s.split(" ");

        //Printing the new string to see what it looks like.
        for (int i = 0; i < newNumbers.length; i++) {
        if (i==0) System.out.print("numbers array before addition loop: " + newNumbers[i] + ", ");
        else {System.out.print (newNumbers[i] + ", ");
        } }
        System.out.println();

        int a = 0;
        for (int i=0; i < newNumbers.length; i++) {
           System.out.print (newNumbers[i] + ", ");
            Integer j = Integer.parseInt(newNumbers[i]);
            a = a + j;
        }
        return a;
    }
}