java – How to collect the selected options in the spinner of another activity

The class I want to check the spinner place, to be able to continue to another page if you have selected something, I would like to take the option selected in the other class.

public static Spinner place;
public static EditText a;
@ Override
protected void onCreate (Bundle savedInstanceState) {
super.onCreate (savedInstanceState);
setContentView (R.layout.activity_inicial);
Spinner place = findViewById (R.id.spinneronde);
EditText a = findViewById (R.id.editText);
chain[] places = new String[]{"At home", "At work", "On the street",
"Others"};
ArrayAdapter adapter = new ArrayAdapter <> (this,
R.layout.support_simple_spinner_dropdown_item, places);
place.setAdapter (adapter);
Button continues = findViewById (R.id.Continue_Button);
Start user = new Initial ();

}
(view view)
{
if (place.getSelectedItem ()! = null && a! = null)
{

startActivity (new Intent (this, Menu.class);
}
other
{
AlertDialog.Builder alertDialog = new AlertDialog.Builder (this);
alertDialog.setMessage ("Please complete all questions.");
alertDialog.setCancelable (true);
}

}

Class I want to pick the selected option

        @ Override
protected void onCreate (Bundle savedInstanceState) {
super.onCreate (savedInstanceState);
setContentView (R.layout.activity_menu);
Spinner lug = Initial.place;
String selecttep = lug.toString ();
if (selectedop == "At home")
{
AlertDialog.Builder alertDialog = new AlertDialog.Builder (this);
alertDialog.setMessage ("CASA :)");
alertDialog.setCancelable (true);
}
}
}