import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
import java.util.stream.Collectors;

public class CorruptingLambdas {
  public static void main(String[] args) throws FileNotFoundException {
    // Words data
    ArrayList<String> words = new ArrayList<String>();

    // Read input data
    // TODO

    // Count occurances of words containing "CAT"
    long catCount = 0;
    // TODO - Convert words to a stream, use the method filter() with a lambda
    // expression, and then use the method count().
    System.out.println("Cat words before: " + catCount);

    // Make a new collection of words that replaces "DOG" with "CAT"
    ArrayList<String> corruptedWords = words;
    // TODO - Convert words to a stream, use the method map() with a lambda
    // expression, and then use the method
    // collect(Collectors.toCollection(ArrayList::new)) to get an arraylist from
    // the stream.

    // Reverse sort that collection
    // TODO - Use the method Collections.sort() with a lambda expression

    // Count occurances of words containing cat again
    // TODO - Convert corruptedWords to a stream, use the method filter() with a
    // lambda expression, and then use the method count().
    System.out.println("Cat words after: " + catCount);

    // Output to a new file
    // TODO - Convert corruptedWords to a stream, and then use the method
    // forEach() with a lambda expression
  }
}