ClassCastException: java.lang.Object[] cannot be cast to java.lang.String[] android

Question

In my application I need to convert my arraylist to a string of an array. However, I am getting an error:

ClassCastException: java.lang.Object[] cannot be cast to java.lang.String[] android 

At the line with listofurls I am getting the error: listofurls = (String[])image_urls.toArray();

This is the full code:

public class Test2 extends AsyncTask<Void, Void, Void>  {   String[] listofurls ;   private static final String url = "http://www.tts.com/album_pro/array_to_encode";   JSONParser jParser = new JSONParser();   ArrayList<String> image_urls = new ArrayList<String>();    protected void onPreExecute() {     //Log.e(LOG_CLASS, "in side assyntask");   }    protected Void doInBackground(Void... voids) {     Log.v("Async","Async");     JSONObject json = jParser.getJSONFromUrl(url);      try {       JSONObject seo = json.getJSONObject("SEO");       JSONArray folio = seo.getJSONArray("Folio");        // JSONArray image_urls1 = new JSONArray();       //String s1=seo.getString("Folio");        for(int i=0;i<folio.length();++i) {         String m = folio.getString(i);         Log.v("M"+i,m);         image_urls.add(m);         Log("test-url"+image_urls);       }     } catch(Exception e) {       e.printStackTrace();     }      listofurls = (String[])image_urls.toArray();  //ERROR OCCURS HERE      return null;   }    private void Log(String string) {     Log.v("Test",string);   }    protected void onProgressUpdate(Integer... progress) { }    protected void onPostExecute(Void result) {     mAdapter = new ImagePagerAdapter(getSupportFragmentManager(),listofurls.length );     mAdapter.setImageurls(listofurls);     mPager.setAdapter(mAdapter);   } 

Answer 1

try

listofurls = image_urls.toArray(new String[image_urls.size()]); 

Note: I suggest to rename listofurls to arrayOfURLs