Returning single String from array

Question

Im trying to write simple game in libGDX, but this problem stops whole process of creating that game. Here is two classes.

public class Question {

private static float getFontX() {
    return Assets.font.getBounds(Database.getText()).width / 2;
}

private static float getFontY() {
    return Assets.font.getBounds(Database.getText()).height / 2;
}

public static void draw(SpriteBatch batch) {

    Assets.font.draw(batch, Database.getText(),
                             TOFMain.SCREEN_WIDTH / 2 - getFontX(),
                             getFontY() + 250 + TOFMain.SCREEN_HEIGHT / 2);
           //drawing some text from database on screen in the middle of screen;

}

and the second class is Database it contains questions

public class Database {

private static String questions[] = new String[2];
{
    questions[0] = "Some question1";
    questions[1] = "Some question2";
}

static public String getText() {
    return questions[0];
}
}

There is a problem in

return questions[0]

because if I write there for example

return "This will work";

everything is ok.

what libgdx has to do with it

Kumar Saurabh
– Kumar Saurabh

2013-09-06 14:32:55 +00:00
Commented Sep 6, 2013 at 14:32 — Kumar Saurabh
– Kumar Saurabh, Commented Sep 6, 2013 at 14:32

Simon Dorociak · Accepted Answer · 2013-09-06 14:30:59Z

1

You need to change your initialisation block to static initialisation block.

static {
    questions[0] = "Some question1";
    questions[1] = "Some question2";
}

If you won't create new instance of Database class like:

Database db = new Database();

dynamic initialisation block won't be called. This is reason why you need to use static initialisation block that is called with class.

answered Sep 6, 2013 at 14:30

Simon Dorociak

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1 Comment

Jakub Over a year ago

Thanks, simple mistake. I know that :P

arjacsoh · Accepted Answer · 2013-09-06 14:38:16Z

1

You can declare the array in Database class as:

public class Database {

private static String questions[] = new String[]{
    "Some question1", "Some question2"
};


static public String getText() {
    return questions[0];
}

}

Then it returns the String you want.

answered Sep 6, 2013 at 14:38

arjacsoh

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1 Comment

Jakub Over a year ago

Yeah I know but for me my form of code is more readable :) and this was the reason for the error :S

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