how to set the delete method in sqlite database correctly?

I have a database called "Users" and a table in that database called "contact". i want to delete a selected contact when I click a button. I want to know how to set the parameters correctly to the delete method. if somebody can gimme an answer with a little example i will be delighted .

my code goes like this

private void deleteContact(String name) {

    SQLiteDatabase database=openOrCreateDatabase("Users",MODE_PRIVATE,null);

    int res=database.delete("contact", "name =", name);

    ///


}

I call this method when I click that Button. my query is,

"delete from contact where name ='"+name+"';