How to convert String into integer array

If the string is something like “12 41 21 19 15 10” and we want an into array, do like follows:

String test = "12 41 21 19 15 10";
// The string to be extracted to an integer array.

String[] intAsString = test.split(" ");
// Splits each space separated integer into a String array.
int[] integers = new int[intAsString.length];

// Creates the integer array.
int i=0;
for (String no : intAsString){
integers[i++] = Integer.parseInt(no);
}

Or if numbers are comma separated:

// String source = "1,2,3,56789,42";
private static int[] getIntsFromString(String source ) {
  String[] integersAsText =  
  source.split(",");
  int[] results = new 
  int[ integersAsText.length ];
  int i = 0;   for ( String textValue :
  integersAsText ) {
  results[i++] = 
  Integer.parseInt( textValue );
  }
  return results ;
}