int retCode = dbminit(file);
fileName = file; int retCode = dbminit(fileName);
	public DBM(String file) {		synchronized(this) {			if (inuse)				throw new IllegalArgumentException("UNIX limitation" + 					"Only one DBM object allowed per Java Machine");			inuse = true;		}		int retCode = dbminit(file);		if (retCode < 0)			throw new IllegalArgumentException(				"dbminit failed, code = " + retCode);	}