Untitled

import java.io.*;
import java.util.*;
import java.util.regex.*;

public class Project {

 public static void main(String[] args) {

   HashMap<String, Integer> bodyFrequency = new HashMap<String, Integer>();
   HashMap<String, Integer> tpFrequency = new HashMap<String, Integer>();
   String parseTopic = "";
   String file = "./Project1_inputs/reut2-000.sgm";
   Pattern tpName = Pattern.compile("<TOPICS>(.*?)</TOPICS>|<PLACES>(.*?)</PLACES>",Pattern.DOTALL);
   Pattern bodyName = Pattern.compile("<BODY>(.*?)</BODY>",Pattern.DOTALL);

      try {
    	  	BufferedReader br = new BufferedReader(new FileReader(file));
    		  PrintWriter out = new PrintWriter("output.txt");

    		  for (int fileNumber = 0; fileNumber < 22; fileNumber++) {
    			  String filename = String.format("./Project1_inputs/reut2-%03d.sgm", fileNumber);
    		  }

        StringBuilder fileContents = new StringBuilder();


       for(String line; (line = br.readLine()) != null;) {
    	   fileContents.append(line);
       }


       	Matcher tpMatcher = tpName.matcher(fileContents);
        Matcher bodyMatcher = bodyName.matcher(fileContents);

        while (tpMatcher.find()) {
            String tpWord = tpMatcher.group(0);
            tpWord = tpWord.toLowerCase().replaceAll("<[^>]*>", " ");

              if(!tpWord.isEmpty()||!tpWord.trim().equals("")) {
                parseTopic += tpWord.toLowerCase();
              }
        }

        String[] topicArray = parseTopic.split(" ");

              for(String tpProcessed:topicArray) {
            	  if (tpFrequency.containsKey(tpProcessed)) {
                      tpFrequency.put(tpProcessed, tpFrequency.get(tpProcessed) + 1);
                    } else {
                      tpFrequency.put(tpProcessed, 1);
                      //System.out.println(tpFrequency);
                }
              }

              for (String name: tpFrequency.keySet()){
            	     String key = name.toString();
            	     String value = tpFrequency.get(name).toString();
            	     out.println(key + " " + value);
                 }

       while (bodyMatcher.find()) {
          String [] words = bodyMatcher.group(0).replaceAll("[^a-zA-Z ]", " ").split(" ");
          for(String word: words) {
            if(word.isEmpty()||word.trim().equals("")) {
              continue;
            }
            String processed = word.toLowerCase();

            if (bodyFrequency.containsKey(processed)) {
              bodyFrequency.put(processed, bodyFrequency.get(processed) + 1);
            } else {
              bodyFrequency.put(processed, 1);
              //System.out.println(bodyFrequency);
            }
          }
          for (String name: bodyFrequency.keySet()){
     	     String key = name.toString();
     	     String value = bodyFrequency.get(name).toString();
     	     out.println(key + " " + value);

    }
              out.close();
       }

 } catch (IOException e) {
        e.getMessage();
      }
 }}