The "Hello World" of Java and MongoDB

Jongo.java

// Jongo.java

import com.mongodb.Mongo;
import com.mongodb.MongoClient;
import com.mongodb.MongoException;
import com.mongodb.WriteConcern;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.BasicDBObject;
import com.mongodb.DBObject;
import com.mongodb.DBCursor;
import com.mongodb.ServerAddress;
import java.net.UnknownHostException;

import java.util.Set;

public class Jongo {

    public static void main(String[] args) throws UnknownHostException {
        MongoClient mongoClient = new MongoClient( "localhost" );
        DB db = mongoClient.getDB( "my_collection" );

        Set<String> colls = db.getCollectionNames();
        for (String s : colls) {
            System.out.println(s);
        }

    }

}

// Compile and run me with:
// javac -cp mongo-2.10.1.jar Jongo.java && java -cp .:mongo-2.10.1.jar Jongo