Free online courses

Here are the courses I signed up for this fall:

• M101J: MongoDB for Java Developers

  Notes:

  • need to add data to "course" database for example
  • SparkJava requires JDK 1.7 (java.lang.UnsupportedClassVersionError: spark/Route : Unsupported major.minor version 51.0)
  • If you shutdown mongodb via control c you may need to repair it: recovery and repair
  • I created batch scripts to handle the startup and recovery

    mongod-start.bat
    "D:\dev\mongodb-win32-i386-2.4.6\bin\mongod" --dbpath "D:\dev\mongodb-win32-i386-2.4.6\data\db"
    pause
    
    mongod-repair.bat
    "D:\dev\mongodb-win32-i386-2.4.6\bin\mongod" --dbpath "D:\dev\mongodb-win32-i386-2.4.6\data\db" --repair
    pause
    

  • SparkJava
  • FreeMarker
  • Mongo command line commands

    db.createCollection("hello")
    db.getCollection("hello").insert({name:"MongoDB"})
    

  • echo cat
  • fruitpicker

• Introduction to Recommender Systems
• Social Network Analysis