android - How to add text in between words in edittext when a button is pressed -

i cannot figure out how add space between every word user types edittext still beginner. have typed obvious code below.

    findviewbyid(r.id.button).setonclicklistener(new view.onclicklistener() {         @override         public void onclick(view v) {             edittext edittext = (edittext) findviewbyid(r.id.edittext);             edittext edittext2 = (edittext) findviewbyid(r.id.edittext2);             edittext2.settext(???);         }     }); 

in case isn't obvious, there seperate edittexts. user types edittext , trying text "come out" in edittext2 spaces added.

edit: here finished code if wants it. added bit says how many spaces it's added.

edittext edittext = (edittext) findviewbyid(r.id.edittext);                 textview edittext2 = (textview) findviewbyid(r.id.edittext2);                 string str = edittext.gettext().tostring();                 str = str.replace(" ", "  ");                 edittext2.settext(str);                  string stre = edittext2.gettext().tostring();                 string string = edittext.gettext().tostring();                 int length = string.length();                 int lengthy = stre.length();                  int finale = lengthy - length;                  textview result = (textview) findviewbyid(r.id.textresult);                 result.settext( finale + " spaces have been added."); 

would work ? sorry can't test, on phone.

edittext2.settext(edit text.gettext().tostring().replace all(" ", "  "));