Java Does Not Equal (!=) Not Working?

Here is my code
snippet:

public void
            joinRoom(String room) throws MulticasterJoinException {
 String statusCheck =
            this.transmit("room", "join", room + "," + this.groupMax + "," +
            this.uniqueID);

 if (statusCheck != "success") {
 throw
            new MulticasterJoinException(statusCheck, this.PAppletRef);

            }
}

However
for some reason, if (statusCheck != "success") is returning
false, and thereby throwing the
MulticasterJoinException.

Answer

if
            (!"success".equals(statusCheck))