CMSC 433Nov 29thDemand driven lectures•The rest of the semester, the lectures will be substantially demand driven•I’ll have some material to present, but I also want to leave plenty of time for you to ask questions either in a group or one-on-one format.Homework 5•Homework 5: Write a Hadoop program to determine the frequency with which words occur together on a line.•e.g., the word Sherlock occurs on a line 101 times; on 96 of those lines the word Holmes also occurs, and on 1 of those lines the word Watson also occursHomework 5•Not tested through the submit server•We’ll just give you some sample queries with answers, and some other queries you have to supply•Submit your answers and your codeProject 4•Documentation postedSending objects in project 4•Can read/write objects through a ObjectInputStream/ObjectOutputStream•Be sure to call flush to ensure your data actually gets shipped over the networkCustomizing Object serialization•Any fields declared transient are not send via object serialization•are null/0/false when deserialized•You may wish to set them, and do other things to objects after they are deserialized but before they are used.Defining a custom readObject method•Define a method private void readObject(java.io.ObjectInputStream in) throws IOException, ClassNotFoundException { in.defaultReadObject(); .. do any customization or setting of transient
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