checking for a set of string in a text file android

Question

I am trying to check if all of the strings in tr are present in file output. If not then I should return true so that I can notify the user, but something is wrong: I am getting the notification again and again even if all strings are present in the file .

 public boolean checkinfile(File output, String[] tr) throws IOException {
    Boolean flag = false;
    BufferedReader br = new BufferedReader(new FileReader(output));
    String read = br.readLine();
    int x = 0;
    for (x = 0; x < tr.length; x++) {
        if ((read.contains(tr[x]))) {

        }
            else {
            flag = true;
            return flag;
        }
    }
    return flag;
}

Answer 1

try this code : your code read only the first line of file , in my suggestion , when it reads the file , if a string not present in the file ,break the loop of reading and return true:

 public boolean checkinfile(File output, String[] tr) throws IOException {
    Boolean flag = false;
    BufferedReader br = new BufferedReader(new FileReader(output));

    for (int x = 0; x < tr.length; x++) {
        String read = br.readLine();
        if (!(read.contains(tr[x]))) {
            flag=true;
            break;
        }
    }
     return flag;

}