public static void writeConversation() {
        try {
            PrintWriter writer = new PrintWriter("Conversation.txt");
            for (String message : messages) {
                writer.println(message);
            }
            writer.close();
        } catch (FileNotFoundException e) {
            System.out.println("File not found.");
        }
    }

public static void writeConversation() {
        try {
            PrintWriter writer = new PrintWriter("Conversation.txt");
            for (String message : messages) {
                writer.println(message);
            }
            writer.close();
        } catch (FileNotFoundException e) {
            System.out.println("File not found.");
        }
    }

                    if (first.compareTo(second) > 0) {
                        String temp = messages[k];
                        messages[k] = messages[l];
                        messages[l] = temp;
                    }
                }
            }
        } catch (FileNotFoundException e) {
            System.out.println("File not found.");
        }

                    if (first.compareTo(second) > 0) {
                        String temp = messages[k];
                        messages[k] = messages[l];
                        messages[l] = temp;
                    }
                }
            }
        } catch (FileNotFoundException e) {
            System.out.println("File not found.");
        }

public static void readMessages() {
        try {
            Scanner reader1 = new Scanner(new File("Person1.txt"));
            Scanner reader2 = new Scanner(new File("Person2.txt"));
            String[] messages1 = new String[10];
            String[] messages2 = new String[10];
            int i = 0;
            int j = 0;
            
            while (reader1.hasNextLine()) {
                messages1[i] = reader1.nextLine();
                i++;
            }

            while (reader2.hasNextLine()) {
                messages2[j] = reader2.nextLine();
                j++;
            }

            reader1.close();
            reader2.close();

            messages = new String[i + j];
            for (int k = 0; k < i; k++) {
                messages[k] = messages1[k];
            }

            for (int k = 0; k < j; k++) {
                messages[i + k] = messages2[k];
            }

            for (int k = 0; k < messages.length; k++) {
                for (int l = k + 1; l < messages.length; l++) {
                    int firstWhiteSpace = messages[k].indexOf(" ");
                    int secondWhiteSpace = messages[k].indexOf(" ", firstWhiteSpace + 1);
                    int thirdWhiteSpace = messages[k].indexOf(" ", secondWhiteSpace + 1);
                    DateTime first = new DateTime(messages[k].substring(firstWhiteSpace + 1, thirdWhiteSpace));

                    int firstWhiteSpace2 = messages[l].indexOf(" ");
                    int secondWhiteSpace2 = messages[l].indexOf(" ", firstWhiteSpace2 + 1);
                    int thirdWhiteSpace2 = messages[l].indexOf(" ", secondWhiteSpace2 + 1);
                    DateTime second = new DateTime(messages[l].substring(firstWhiteSpace2 + 1, thirdWhiteSpace2));
    

public static void readMessages() {
        try {
            Scanner reader1 = new Scanner(new File("Person1.txt"));
            Scanner reader2 = new Scanner(new File("Person2.txt"));
            String[] messages1 = new String[10];
            String[] messages2 = new String[10];
            int i = 0;
            int j = 0;
            
            while (reader1.hasNextLine()) {
                messages1[i] = reader1.nextLine();
                i++;
            }

            while (reader2.hasNextLine()) {
                messages2[j] = reader2.nextLine();
                j++;
            }

            reader1.close();
            reader2.close();

            messages = new String[i + j];
            for (int k = 0; k < i; k++) {
                messages[k] = messages1[k];
            }

            for (int k = 0; k < j; k++) {
                messages[i + k] = messages2[k];
            }

            for (int k = 0; k < messages.length; k++) {
                for (int l = k + 1; l < messages.length; l++) {
                    int firstWhiteSpace = messages[k].indexOf(" ");
                    int secondWhiteSpace = messages[k].indexOf(" ", firstWhiteSpace + 1);
                    int thirdWhiteSpace = messages[k].indexOf(" ", secondWhiteSpace + 1);
                    DateTime first = new DateTime(messages[k].substring(firstWhiteSpace + 1, thirdWhiteSpace));

                    int firstWhiteSpace2 = messages[l].indexOf(" ");
                    int secondWhiteSpace2 = messages[l].indexOf(" ", firstWhiteSpace2 + 1);
                    int thirdWhiteSpace2 = messages[l].indexOf(" ", secondWhiteSpace2 + 1);
                    DateTime second = new DateTime(messages[l].substring(firstWhiteSpace2 + 1, thirdWhiteSpace2));
    

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

public class Main {
    public static String[] messages;
    public static void main(String[] args) {
        readMessages();
        writeConversation();
    }

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

public class Main {
    public static String[] messages;
    public static void main(String[] args) {
        readMessages();
        writeConversation();
    }