solved merge conflict

Author: Jamarcus111

data/duke.txt

@@ -0,0 +1,2 @@
+T | 0 | Read a book
+T | 0 | Sleep an hour

src/main/java/DeadLine.java

@@ -1,6 +1,9 @@
 public class DeadLine extends Task {
     protected String by;
 
+    public String toFileFormat() {
+        return String.format("D | %d | %s | %s", isDone ? 1 : 0, description, by);
+    }
     public DeadLine(String description, String by) {
         super(description);
         this.by = by;

src/main/java/Event.java

@@ -2,6 +2,9 @@ public class Event extends Task {
     protected String from;
     protected String to;
 
+    public String toFileFormat() {
+        return String.format("E | %d | %s | %s to %s", isDone ? 1 : 0, description, from, to);
+    }
     public Event(String description, String from, String to) {
         super(description);
         this.from = from;

src/main/java/Task.java

@@ -2,6 +2,9 @@ public class Task {
     protected String description;
     protected boolean isDone;
 
+    public String toFileFormat() {
+        return String.format("T | %d | %s", isDone ? 1 : 0, description);
+    }
     public Task(String description) {
         this.description = description;
         this.isDone = false;

src/main/java/TaskList.java

@@ -1,22 +1,79 @@
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
 import java.util.ArrayList;
+import java.util.Scanner;
+
 public class TaskList {
     private final ArrayList<Task> tasks;
+    private static final String FILE_PATH = "./data/duke.txt";
 
     public TaskList() {
         this.tasks = new ArrayList<>();
+        loadTasks(); // Ensure tasks are loaded when an instance is created
+    }
+
+    private void loadTasks() {
+        File file = new File(FILE_PATH);
+        if (!file.exists()) {
+            return; // Skip loading if file does not exist
+        }
+        try (Scanner scanner = new Scanner(file)) {
+            while (scanner.hasNextLine()) {
+                String line = scanner.nextLine();
+                Task task = parseLineToTask(line);
+                if (task != null) {
+                    tasks.add(task);
+                }
+            }
+        } catch (IOException e) { // Catching IOException which covers FileNotFoundException
+            System.out.println("Unable to read tasks from file: " + e.getMessage());
+        }
+    }
+
+    private Task parseLineToTask(String line) {
+        String[] parts = line.split(" \\| ");
+        String type = parts[0];
+        boolean isDone = parts[1].equals("1");
+        String description = parts[2];
+        Task task;
+
+        switch (type) {
+        case "T":
+            task = new Todo(description);
+            break;
+        case "D":
+            String by = parts.length > 3 ? parts[3] : "";
+            task = new DeadLine(description, by);
+            break;
+        case "E":
+            String from = parts.length > 3 ? parts[3] : "";
+            String to = parts.length > 4 ? parts[4] : "";
+            task = new Event(description, from, to);
+            break;
+        default:
+            System.out.println("Unknown task type in file: " + type);
+            return null; // Return null for unknown task types
+        }
+        task.isDone = isDone;
+        return task;
     }
 
+
+
+
     public void addTask(String userInput) throws HandleException {
-        // Similar to addTask method in TaskManager, but refactored for this class
         Task task = TaskFactory.createTask(userInput);
         if (task != null) {
             tasks.add(task);
+            saveTasks(); // Save the task list to file after adding a new task
             System.out.println("Got it. I've added this task:");
             System.out.println("  " + task);
             System.out.println("Now you have " + tasks.size() + " tasks in the list.");
         }
     }
 
+
     public void deleteTask(int taskIndex) throws HandleException {
         if (taskIndex < 1 || taskIndex > tasks.size()) {
             throw new HandleException("OOPS!!! The task number is invalid.");
@@ -27,10 +84,28 @@ public void deleteTask(int taskIndex) throws HandleException {
         System.out.println("Now you have " + tasks.size() + " tasks in the list.");
     }
 
+    public void saveTasks() {
+        try {
+            File file = new File(FILE_PATH);
+            if (!file.getParentFile().mkdirs() && !file.getParentFile().exists()) {
+                System.out.println("Failed to create directories for the task file.");
+                return;
+            }
+            try (FileWriter writer = new FileWriter(file, false)) {
+                for (Task task : tasks) {
+                    writer.write(task.toFileFormat() + System.lineSeparator());
+                }
+            }
+        } catch (IOException e) {
+            System.out.println("Unable to save tasks to file: " + e.getMessage());
+        }
+    }
+
     public void listTasks() {
         System.out.println("Here are the tasks in your list:");
         for (int i = 0; i < tasks.size(); i++) {
             System.out.println((i + 1) + "." + tasks.get(i));
         }
     }
 }
+

src/main/java/Todo.java

@@ -3,6 +3,10 @@ public Todo(String description) {
         super(description);
     }
 
+    public String toFileFormat() {
+        return String.format("T | %d | %s", isDone ? 1 : 0, description);
+    }
+
     @Override
     public String toString() {
         return "[T]" + super.toString();