how i supplement query parameters getmethod (using java commons-httpclient)?

using apache's commons-httpclient java, what's best proceed supplement query parameters getmethod instance? i'm controlling postmethod, it's unequivocally straightforward:

postmethod slight = new postmethod();
method.addparameter("key", "value");

getmethod doesn't have an "addparameter" method, though. i've detected works:

getmethod slight = new getmethod("http://www.example.com/page");
method.setquerystring(new namevaluepair[] {
    new namevaluepair("key", "value")
});

however, many examples i've seen presumably hard-code parameters directly url, e.g.:

getmethod slight = new getmethod("http://www.example.com/page?key=value");

or hard-code query string, e.g.:

getmethod slight = new getmethod("http://www.example.com/page");
method.setquerystring("?key=value");

is patterns preferred? since api inequality between postmethod getmethod? those httpmethodparams methods commanded used for?