You typically do not do String comparison using ==, try using the
equals(..) method instead - in your case directly on your ArrayLists.
if (user.equals(mine)) {
// Start a new activity.
}
Btw, you should consider using generics for your lists, e.g.
ArrayList<String> mine = new ArrayList<String>();
On Sep 16, 4:27 pm, Zwiebel <hunzwie...@gmail.com> wrote:
> I need to have two arraylists. I declared them. I declared a "mine"
> arraylist and an "user" arraylist with this code:
>
> ArrayList mine = new ArrayList();
> ArrayList user = new ArrayList();
>
> I want to store in these values, what are will be important to contact
> with the user:
> I added values to my mine arraylist:
> mine.add("0");
> mine.add("1");
> mine.add("0");
>
> I want to add a values to the user named arraylist if the user press a
> button. So I added this code:
> user.add("0");
>
> and
>
> user.add("1");
>
> to an another button.
>
> I added two
>
> Log.i("user", user.toString());
>
> line to the buttons so I can follow how the arraylist looks like in
> the appropriate moments.
>
> Then if the user clicks an another button, I want to compare these
> lists, so I implemented the following code:
>
> for (int j = 0; j < user.size(); j++) {
> for (int k = 0; k < mine.size(); k++) {
> if (user.get(j) == mine.get(k)) {
> //start a new activity
> }
>
> If the two arraylists are the same in the order and in values, I want
> to show a new screen (its name is for example good), and if not I want
> to show an another( its name is for example lose). But I have a
> problem. My program is only show my lose screen if the user only
> clicked the button which add 1 to the arraylists, or if he/she only
> clicked the button which add 0 to the arraylist. How can I make my
> program to run as I want? Thanks in advance
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