android - Using edittext as a word checker -

so i'm new world of java & android coding coding. want make code checker checks if code entered correct. if gives message "code verified".

so example, enter 'test', should accepted. when compile code doesn't work.

here current code

  sub button1_click if promocode.text="test"   msgbox("code verified") else   msgbox("that code incorrect") end if     promocode.text="" end sub 

from top of head, should work:

button button1 = (button) findviewbyid(r.id."the id of button"); edittext promocode = (edittext) findviewbyid(r.id."the id of textbox");  button1.setonclicklistener(new view.onclicklistener() {     @override     public void onclick(view v) {        if(promocode.gettext == "test"){          toast toast = toast.maketext(getapplicationcontext(), "code verified", toast.length_short);         toast.show();       }else{         toast toast = toast.maketext(getapplicationcontext(), "that code incorrect", toast.length_short);         toast.show();       };        promocode.settext = "";     }  });