At its core, MapReduce is a combination of two functions — map() and reduce(), as its name would suggest. A quick look at a sample Java program will help you get your bearings in MapReduce.

Java’s collections like arrays and lists are foundational building blocks. Functional programming techniques are at times the ideal way to work with these collections.

Topics covered in this class include: effective use of the Java language, annotations, database connectivity (JDBC) and relational mapping, XML processing (JAXB), generics, multithreading, network ...