MapReduce实验——英语单词个数统计实验

英语单词频次统计
Map类
package WordSum_02;

import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.NullWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

import java.io.IOException;

public class MyMap extends Mapper {
@Override
protected void map(LongWritable key,Text value,Context context) throws IOException,

MapReduce实验——英语单词个数统计实验最先出现在Python成神之路。