Numberformatexception: Invalid int: "1" I CAN’T CONVERT STRING TO INTEGER

Question

I have a String = "1" and I can’t convert it to int, I think it might have something to do with the way it was built, the class that reads the TXT file from the web and saves it in the database is below:

public class Downloader {

public Downloader() {
}

public ArrayList<String> baixarTxt(URL url, String fileName) throws IOException {
    StringBuffer datax = new StringBuffer();

    InputStream is = url.openStream();
    //InputStreamReader isr = new InputStreamReader(is, "windows-1250");
    InputStreamReader isr = new InputStreamReader(is, StandardCharsets.UTF_8);
    BufferedReader br = new BufferedReader(isr);

    String readString = br.readLine();
    ArrayList<String> arrayList = new ArrayList<>();
    while(readString != null){
        datax.append(readString);
        arrayList.add(readString);
        readString = br.readLine();
    }

    isr.close();
    return arrayList;
}

public void salvarNoBanco(ArrayList<String> list, Context context){
    VendedorDB venDB = new VendedorDB(context);
    venDB.recriarTblVendedor();
    for(int i = 0; i < list.size(); i++){
        String linha = list.get(i);
        String[] dadosLinha = linha.split(";");

        Vendedor v = new Vendedor();
        v.setId(Integer.parseInt(dadosLinha[0])); //#### <- O ERRO OCORRE AQUI
        v.setNome(dadosLinha[1]);
        v.setSenha(dadosLinha[2]);
        v.setMeta(Integer.parseInt(dadosLinha[3]));
        v.setVlrAtual(Integer.parseInt(dadosLinha[4]));

        venDB.inserir(v);
    }
}

}

The Error message is as follows:

04-03 20:47:32.102 7800-7800/com.example.w190227 E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.w190227, PID: 7800
java.lang.NumberFormatException: Invalid int: "1"
    at java.lang.Integer.invalidInt(Integer.java:137)
    at java.lang.Integer.parse(Integer.java:374)
    at java.lang.Integer.parseInt(Integer.java:365)
    at java.lang.Integer.parseInt(Integer.java:331)
    at com.example.w190227.util.db.Downloader.salvarNoBanco(Downloader.java:61)
    at com.example.w190227.fragment.HomeFragment$DownloaderAsyncTask.onPostExecute(HomeFragment.java:148)
    at com.example.w190227.fragment.HomeFragment$DownloaderAsyncTask.onPostExecute(HomeFragment.java:126)
    at android.os.AsyncTask.finish(AsyncTask.java:632)
    at android.os.AsyncTask.access$600(AsyncTask.java:177)
    at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:645)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:136)
    at android.app.ActivityThread.main(ActivityThread.java:5017)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
    at dalvik.system.NativeStart.main(Native Method)

The downloadTxt() method is called in doInBackground() from an Asynctask and saveNoBanco() is called in onPostExecute(), follows the code below:

public class DownloaderAsyncTask extends AsyncTask<URL, Void, ArrayList<String>> {

    @Override
    protected ArrayList<String> doInBackground(URL... urls) {
        ArrayList<String> result;
        try {
            Downloader download = new Downloader();
            URL url = urls[0];
            result = download.baixarTxt(url, "grupos");
        }catch(Exception e){
            Log.d("LOG", "ERRO: "+e);
            result = new ArrayList<>();
            result.add("ERRO no arraylist");
        }
        return result;
    }

    @Override
    protected void onPostExecute(ArrayList<String> s) {
        Log.d("LOG", "Baixou: "+s);
        Toast.makeText(getActivity(), "Baixou: "+s.get(1), Toast.LENGTH_SHORT).show();
        Downloader download = new Downloader();
        download.salvarNoBanco(s, getActivity());
    }
}

And the text file that is downloaded from the web is below:

1;pablo;wt2009;10000;10000
2;waltair;wt2009;12000;12000
3;bruno;wt2009;5000;5000

Answer 1

Since it is a txt, it is probably receiving some "non-printable" character. Try the following:

Integer.parseInt(dadosLinha[0].replaceAll("\\p{C}", ""));

Thus will remove those characters that are "non-pritable"