How to delete a specific row in sqlite databse in android? -

i have used separate class creation of db. in have written delete function this

public void name_delete(string name){      sqlitedatabase db = this.getwritabledatabase();     db.delete(table_name, key_name + "=" + name, null); //key_name column name } 

in main class called function

db.name_delete(""+all_names.getselecteditem().tostring()); 

all_names.getselecteditem().tostring() spinner selected item. delete particular row name selected in spinner. me how write function.

should

db.delete(table_name, key_name + "=?", new string[]{name});   

also

db.name_delete(all_names.getselecteditem().tostring());