Sort ArrayList of Array in Java

Question

What is the best way to sort an ArrayList in Java?

Where String[] is...

String[] = new String[] { \"abc\", \"abc\", \"ab         


        

Answer 1

You create a Comparator<String[]> like so:

new Comparator<String[]>() {
  public int compare(String[] first, String[] second) {
    return first[1].compareTo(second[1]);
  }
}

then pass it to Collections.sort().

You might want to do some checking if the second element is actually present in the array. You could also do a custom comparison if the standard String comparison isn't enough.