Question

I have a string (1, 2, 3, 4), and I want to parse the integers into an array.

I can use split(",\\s") to split all but the beginning and ending elements. My question is how can I modify it so the beginning and ending parenthesis will be ignored?

Answer 1

You’d be better served by matching the numbers instead of matching the space between them. Use

final Matcher m = Pattern.compile("\\d+").matcher("(1, 2, 3, 4)");
while (m.find()) System.out.println(Integer.parseInt(m.group()));