Java - map reduce

Write a Hadoop MapReduce program to compute frequencies (number of occurrences) of bigrams that appear in the lines of a collection of documents. A bigram consists of two consecutive words in a line of text. For example, consider a line : "srm cs it students". This line will only have three bigrams: "srm cs", "cs it" and "it students" and their count will be 1 respectively (You do not need to consider the reverse order). You need to count the frequencies of bigrams from the collection of documents. Your two output files should look like the following picture (bigrams and frequencies) : Execution format 1. Hadoop jar [login to view URL] BigramCount input-directory output-directory 2. input-directory : any folder name that contains a number of text files 3. output-directory : any folder name that contains your output results