import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.PrintWriter;
import static java.lang.Thread.sleep;
import java.util.Comparator;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;

public class Output {

     public Output(Map<String, Integer> word) {

    System.out.println("Proccessed URL's now writing to File.........");
    String fileName = "CrawledWords.txt";
    File file = new File(fileName);
    /*if (file.exists()) {
        System.out.println("File already exists");
        System.exit(0);
    }*/

    // open output stream and printwriter to print to file the formatted
    data
    FileOutputStream fileOut = null;
    try {
        fileOut = new FileOutputStream(fileName);
    } catch (FileNotFoundException ex) {

    }
    try (PrintWriter printOut = new PrintWriter(fileOut)) {

        // sorting the method in decending order and limiting it to 50 keys,
    modified the code from https://www.mkyong.com/java/how-to-sort-a-map-in-
  java/
        Map<String, Integer> words = word.entrySet().stream()

 .sorted(Map.Entry.comparingByValue(Comparator.reverseOrder())) // sort the
map in decending order by value
                .limit(50) // limiting the top 50 values
                .collect(Collectors.toMap(Map.Entry::getKey,
 Map.Entry::getValue,
                        (oldValue, newValue) -> oldValue,
LinkedHashMap::new));

        words.forEach((k, v) -> printOut.println(k + " " + v)); // print Map
keys and values to the file
        try {
            sleep(1000);
        } catch (InterruptedException ex) {
            Logger.getLogger(Output.class.getName()).log(Level.SEVERE, null,
 ex);
        }
        printOut.flush(); // flush the printwriter
        System.out.println(fileName + " has been created in your working
directory");
    }
    try {
        fileOut.close(); //close the outputstream
    } catch (IOException ex) {
        Logger.getLogger(Output.class.getName()).log(Level.SEVERE, null,
 ex);
    }
 }
 }