Fetch records from MongoDB and print them

Mongo_Retrieve_Collection.java

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.util.Arrays;

public class Mongo_Retrieve_Collection
{
	public static void main( String args[] )
	{
		try {   
			// To connect to mongodb server
			MongoClient mongoClient = new MongoClient( "localhost" , 27017 );
			// Now connect to your databases
			DB db = mongoClient.getDB( "mh-db" );
			System.out.println("Connect to database successfully");

			DBCollection collection = db.getCollection("mhColl");
			System.out.println("Collection mhColl selected successfully");
			
			System.out.println("Retrieving and printing the records");
			long time1 = System.currentTimeMillis();
			
			DBCursor cursor = collection.find();
			while (cursor.hasNext()) { 
				System.out.println(cursor.next()); 
			}
			
			long time2 = System.currentTimeMillis();
			
			System.out.println("------------------");
			System.out.println("Retrieving and printing took " + (time2 - time1) + " ms");
		}
		catch (Exception e){
			System.err.println( e.getClass().getName() + ": " + e.getMessage() );
		}
   }
}