In my Android app, the login system should save data, so that it shows the "data/information " in ANOTHER classes.
My login contains: weight, height, age, name.
Save values
SharedPreferences sharedpreferences = getSharedPreferences("YourPreferenceName", Context.MODE_PRIVATE);
Editor editor = sharedpreferences.edit();
editor.putString("weight", "value");
editor.commit();
Get Values
SharedPreferences sharedpreferences = getSharedPreferences("YourPreferenceName", Context.MODE_PRIVATE);
String weight = sharedpreferences.getString("weight", "default_value");