Random object selection on Andorid?

Question

Android

Hello!
Can someone help write code so that when a button is clicked, an object from the directory is randomly selected.
android.

Answer 1

file or class (class object) ? O_O

Random r=new Random();
        File path=new File("/dir");
        File[] fileList=path.listFiles();
        int index=(r.nextInt(fileList.length));

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