button - I'm trying to read in a file on android -

i making app text of button random string, , of random strings stored in .txt file. made method return string , reason whenever run app button blank , there no text on it. know sommething file io because if method return set string "hi" text on button hi. adding oncreate method in case.

protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_game);      string str = "hello there!";     textview text = (textview) findviewbyid(r.id.question);     text.settext(execute());  } 

above oncreate below fileio file

public static string execute() {  string number[] = new string[100];  double x = math.random()*47;  int random = (int) math.round(x);      int act = 0;      //the try/catch statement encloses code , used handle errors , exceptions might occur     try {           // read in file         bufferedreader in = new bufferedreader(new filereader("activities"));           string str;          while ((str = in.readline()) != null) {              number[act] = str;             act++;         }          in.close();         } catch (ioexception e) {              system.out.println("can not open or write file.");         }         return number[random]; } 

you have mentioned try read .txt file, in filereader, you've given name called activities without file extension. that's why nothing getting displayed.

new filereader("activities.txt"); // should 

also, either needs relative url or better, try put file in assets folder , try read there. that's better , cleaner approach.

check out answer on how read file assets folder.