Converting ArrayList to Array in java

Question

I have an ArrayList with values like \"abcd#xyz\" and \"mnop#qrs\". I want to convert it into an Array and then split it with # as delimiter and have abcd,mnop in an array a

Answer 1

This can be done using stream:

List stringList = Arrays.asList("abc#bcd", "mno#pqr");
    List objects = stringList.stream()
                                       .map(s -> s.split("#"))
                                       .collect(Collectors.toList());

The return value would be arrays of split string. This avoids converting the arraylist to an array and performing the operation.