How can you convert a 2 dimensional array into a 1 dimensional array in Java

Question

I would like to know how to convert a 2 dimensional array into a 1 dimensional array. I have come up with some code but it doesn\'t exactly seem to work. Can someone please

Answer 1

A cleaner version:

public static String[] flatten(String[][] data) {
    List toReturn = new ArrayList();
    for (String[] sublist : Arrays.asList(data)) {
        for (String elem : sublist) {
            toReturn.add(elem);
        }
    }
    return toReturn.toArray(new String[0]);
}