Time for action – implementing WordCount

We have seen the use of the WordCount example program in Chapter 2, Getting Hadoop Up and Running. Now we will explore our own Java implementation by performing the following steps:

1. Enter the following code into the WordCount1.java file:

   Import java.io.* ;
   import org.apache.hadoop.conf.Configuration ;
   import org.apache.hadoop.fs.Path;
   import org.apache.hadoop.io.IntWritable;
   import org.apache.hadoop.io.Text;
   import org.apache.hadoop.mapreduce.Job;
   import org.apache.hadoop.mapreduce.Mapper;
   import org.apache.hadoop.mapreduce.Reducer;
   import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
   import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat; 
   
   
   public class WordCount1 
   {
       
   
       public static class WordCountMapper
       extends Mapper<Object, Text, Text, IntWritable>
   {
           
           private final static IntWritable one = new IntWritable(1);
           private Text word = new Text();
           
           public void map(Object key, Text...