//Adding eventListener to that reference myRef.addValueEventListener(new ValueEventListener() { @Override public void onDataChange(@NonNull DataSnapshot dataSnapshot) { //Getting the string value of that node String value = dataSnapshot.getValue(String.class); Toast.makeText(MainActivity.this, "Data Received: " + value, Toast.LENGTH_SHORT).show(); } @Override public void onCancelled(@NonNull DatabaseError databaseError) { Log.e(TAG, "onCancelled: Something went wrong! Error:" + databaseError.getMessage() ); } });