How to integrate for loop to fill up array in Java?

Question

public static int[] tabCards() {
    return new int[] {
            R.string.title_section1,
            R.string.title_section2
    };
}

I want to fill the int[] array with numbers from 1 to 41. How can I achieve this? I tried using a for loop but I don't know how to implement it exactly in this case.

I want that int[]has title_section1, title_section2, title_section3, title_section4, ... until title_section41.

You can't parametrize a variable name, so your best bet would be to see if there exist some getter method which takes an index. — Tim Biegeleisen
– Tim Biegeleisen, Commented May 19, 2016 at 0:59
I think this is a duplicate but I'll defer to android people: stackoverflow.com/questions/7493287/… — Sotirios Delimanolis
– Sotirios Delimanolis, Commented May 19, 2016 at 1:00
title_section1 to 41 is defined in strings.xml, if that information helps? — AlexioVay
– AlexioVay, Commented May 19, 2016 at 1:04
This won't work with an initializer, you will have to create the array as an local variable and iterate over it. — Patru
– Patru, Commented May 19, 2016 at 2:55
If your're talking about strings how about modifying your strings.xml to have R.string.title_section1 -> ...title_section41 — jtt
– jtt, Commented May 19, 2016 at 3:56

Community · Accepted Answer · 2017-05-23 12:14:47Z

3

Disclaimer: I'm not an Android guy. But based on this answer, you should be able to do this:

public static int[] tabCards() {
    int result = new int[41];
    for (int i = 0; i < result.length; i++) {
        result[i] = getResources().getIdentifier("title_section" + i, "string", getPackageName());
    }
    return result;
}

edited May 23, 2017 at 12:14

CommunityBot

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answered May 19, 2016 at 2:31

shmosel

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4 Comments

AlexioVay Over a year ago

Thanks for you try, but this doesn't work. getResources cannot be referenced from a static context

shmosel Over a year ago

@Vaia So... make it non-static?

shmosel Over a year ago

@Vaia Did you save and refresh? Are you in a static inner class?

Phantômaxx Over a year ago

Simply pass the context to tabCards(Context ctx) and use it so result[i] = ctx.getResources()...

mrres1 · Accepted Answer · 2016-05-19 02:09:27Z

public static int[] tabCards() {
    return new int[] {
        R.string.title_section1,
        R.string.title_section2,
        R.string.title_section3,
        R.string.title_section4,
        R.string.title_section5,
        R.string.title_section6,
        R.string.title_section7,
        R.string.title_section8,
        R.string.title_section9,
        R.string.title_section10,
        R.string.title_section11,
        R.string.title_section12,
        R.string.title_section13,
        R.string.title_section14,
        R.string.title_section15,
        R.string.title_section16,
        R.string.title_section17,
        R.string.title_section18,
        R.string.title_section19,
        R.string.title_section20,
        R.string.title_section21,
        R.string.title_section22,
        R.string.title_section23,
        R.string.title_section24,
        R.string.title_section25,
        R.string.title_section26,
        R.string.title_section27,
        R.string.title_section28,
        R.string.title_section29,
        R.string.title_section30,
        R.string.title_section31,
        R.string.title_section32,
        R.string.title_section33,
        R.string.title_section34,
        R.string.title_section35,
        R.string.title_section36,
        R.string.title_section37,
        R.string.title_section38,
        R.string.title_section39,
        R.string.title_section40,
        R.string.title_section41
    };
}

I know that it works this way, but that's why I asked for a for loop.

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