package object_in;
import java.util.HashMap;
public class TestAddItem {
HashMap hm = new HashMap();
void doCommonMethods() {
hm.clear();
hm.containsKey("a_key");
hm.containsValue("a_value");
hm.entrySet();
hm.get("a_key");
hm.isEmpty();
hm.keySet();
hm.put("a_key","a_value");
hm.putAll(new HashMap());
hm.remove("a_key");
hm.size();
hm.values();
}
}