android - CheckBox unchecked in List<> not working -

would able me if checkbox !ischecked, why not delete item list?

this code:

checkbox.setoncheckedchangelistener(new compoundbutton.oncheckedchangelistener() {             @override             public void oncheckedchanged(compoundbutton buttonview, boolean ischecked) {                 string str = fajllista.get(position).getname();                 if (ischecked){                     kijeloltfajlok.add(new fajlok(str));                      string x = "";                     (fajlok : kijeloltfajlok){                         x += a.getname() + "\n";                     }                     toast.maketext(context, x, toast.length_short).show();                 }                 else{                     kijeloltfajlok.remove(str);                     string x = "";                     (fajlok : kijeloltfajlok){                         x += a.getname() + "\n";                     }                     toast.maketext(context, x, toast.length_short).show();                 }             }         }); 

supposing kijeloltfajlok object of type list, arraylist or similar (some object´s container), if want remove item of list using remove method should send parameter object want remove. looking @ code, sending parameter string object, 1 line:

string str = fajllista.get(position).getname(); 

but string never in array, no objects removed. iy want remove object, should send parameter fajlok object want remove.