mongodb://:@ds041177.mongolab.com:41177/myclouddb Mongo m = new Mongo(); com.mongodb.DBAddress dba=new DBAddress("mongodb://admin:password@ds041177.mongolab.com:41177/myclouddb"); m.connect(dba); java.lang.NumberFormatException: For input string: "" String textUri = "mongodb://admin:password@ds041177.mongolab.com:41177/myclouddb" MongoURI uri = new MongoURI(textUri) Mongo m = new Mongo(uri); String textUri = "mongodb://admin:password@ds041177.mongolab.com:41177/myclouddb" MongoClientURI uri = new MongoClientURI(textUri) MongoClient m = new MongoClient(uri);