How do I convert a large binary String to byte array java?

Question

I have a large binary string \"101101110...\", and I am trying to store it into a byte array. what is the best way of doing it?

Lets say I have largeString = \"01001

Answer 1

You can easily build an ArrayList on which you can call toArray if you want an actual array;

List list = new ArrayList<>();

for(String str : largeString.split("(?<=\\G.{8})"))
    list.add(Integer.parseInt(str, 2));

System.out.println(list);  // Outputs [78, 187, 96, 17, 21]