M101J: MongoDB for Java Developers : Homework and Answers

Class started Oct 12, 2015

Homework 1.1

Steps to find answers:-

Start mongo service using "mongod" command
go to path homework_1_1/hw1-1 and run "mongorestore". You will see messages like

finished restoring m101.hw1 (1 document)
finished restoring m101.funnynumbers (100 documents)
done

Now run "mongo" and then run these commands one by one

use m101
db.hw1.findOne()

In answer you will get
{
"_id" : ObjectId("50773061bf44c220307d8514"),
"answer" : 42,
"question" : "The Ultimate Question of Life, The Universe and Everything"
}

Answer : 42

Homework 1.2

Answers are :-

{ "a" : 1, "b" : { "b" : 1, "c" : "foo", "d" : "bar", "e" : [1, 2, 4] } }

{}

{ "title" : "Star Wars", "quotes" : [ "Use the Force", "These are not the droids you are looking for" ], "director" : "George Lucas" }

Homework 1.3

Install and set up maven according to the mongo university video tutorial.
Run command mvn compile exec:java -Dexec.mainClass=com.mongodb.SparkHomework

You will have output like
== Spark has ignited ...
>> Listening on 0.0.0.0:4567
167 [Thread-1] INFO org.eclipse.jetty.server.Server - jetty-9.0.2.v20130417
263 [Thread-1] INFO org.eclipse.jetty.server.ServerConnector - Started ServerConnector@12d6bb71{HTTP/1.1}{0.0.0.0:4567}

Now go to address 0.0.0.0:4567 in your browser

You will find the answer

Answer is : 523258

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M101J: MongoDB for Java Developers : Homework and Answers