How can I sort this ArrayList the way that I want?

Question

Here is a simple sorting program of an ArrayList:

ArrayList list = new ArrayList();

list.add(\"1_Update\");
list.add(\"11_Add\")         


        

Answer 1

The string compare algorithm compare each character at a time. 1 sorts before 2. It doesn't matter that it is followed by a 1 or a 2.

So 100 would sort before 2. If you don't want this behavior, you need a compare algorithm that handles this case.