how to change the name of array in android script

Question

i have arrays say for ex

int img1[] = {R.drawable.a1,R.drawable.a2,....}
int img2[] = {R.drawable.b1,R.drawable.b2,....}
int img3[] = {R.drawable.c1,R.drawable.c2,....}

I want to define a varibale for ex imgn where when on some condition it has to select the different array imgn= img1 or imgn= img2 etc

if (rnd.nextInt(4) == 1) ( 
 imgn[rnd.nextInt(3)]);

where rnd is defined as Random

Regards

Anik Islam Abhi · Accepted Answer · 2016-11-12 11:39:45Z

1

You can use HashMap

HashMap<String,int[]> arraynames = new HashMap<String,int[]>();
arraynames.put("img1", new int[]{R.drawable.a1,R.drawable.a2,....});
int[]arr=arraynames.get("img"+rnd.nextInt(3));

DEMO

edited Nov 12, 2016 at 11:39

answered Nov 12, 2016 at 11:34

Anik Islam Abhi

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2 Comments

reader Over a year ago

do we need to import any thing ? because it is not finding put fucntion in the arraynames.put("img1", new int[]{R.drawable.a1,R.drawable.a2,....}); iam using android.

reader Over a year ago

we need to add values in constructor as suggested in [link] (stackoverflow.com/questions/34158839/…) thanks again

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