This is a function to load text from storage

load_text_storage.java

 public void load(View view) {
        try {
            FileInputStream fileInputStream = openFileInput("vivz.txt");
            int read = -1;
            StringBuffer buffer = new StringBuffer();
            while((read=fileInputStream.read())!=-1) {
                buffer.append((char) read);
            }
            Log.d("VIVZ",buffer.toString());
            String text1 = buffer.substring(0,buffer.indexOf(" "));
            String text2 = buffer.substring(buffer.indexOf(" "+1));

            username.setText(text1);
            password.setText(text2);

        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }


        Toast.makeText(this,"Load successful",Toast.LENGTH_SHORT).show();
    }