content: // cc MaxTemperature Application to find the maximum temperature in the weather dataset
  // vv MaxTemperature
  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.lib.input.FileInputFormat;
  import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat;
  
  public class MaxTemperature {
  
    public static void main(String[] args) throws Exception {
      if (args.length != 2) {
        System.err.println("Usage: MaxTemperature <input path> <output path>");
        System.exit(-1);
      }
      
      Job job = new Job();
      job.setJarByClass(MaxTemperature.class);
      job.setJobName("Max temperature");
  
      FileInputFormat.addInputPath(job, new Path(args[0]));
      FileOutputFormat.setOutputPath(job, new Path(args[1]));
      
      job.setMapperClass(MaxTemperatureMapper.class);
      job.setReducerClass(MaxTemperatureReducer.class);
  
      job.setOutputKeyClass(Text.class);
      job.setOutputValueClass(IntWritable.class);
      
      System.exit(job.waitForCompletion(true) ? 0 : 1);
    }
  }
  // ^^ MaxTemperature
  