[tiffanyliu0220] iP

src/main/java/Sunny.java

@@ -0,0 +1,109 @@
+import java.util.Scanner;
+
+public class Sunny {
+    public static void main(String[] args) {
+        String chatBotName = "Sunny";
+        Task[] tasks = new Task[100]; //Fixed-size array to store tasks
+        int counter = 0; //Counter to keep track of the number of tasks
+
+        //Greets the user
+        System.out.println("Hello! I'm " + chatBotName);
+        System.out.println("What can I do for you?");
+        System.out.println(" ");
+
+        //Initialises scanner for user input
+        Scanner scanner = new Scanner(System.in);
+
+        //Echoes commands after user says bye
+        while (true) {
+            //Gets user input
+            String command = scanner.nextLine();
+
+            //If the user input is "bye"
+            if (command.equalsIgnoreCase("bye")){
+                //Exit message
+                System.out.println(" ");
+                System.out.println("Bye. Hope to see you again soon!");
+                System.out.println(" ");
+                break;
+            } else if (command.equalsIgnoreCase("list")){
+                //Displays the list of tasks
+                System.out.println("Here are the tasks in your list: ");
+                for (int i = 0; i < counter; i ++) {
+                    //
+                    System.out.println((i + 1) + ". [" + tasks[i].getStatusIcon() + "]" + tasks[i].getDescription());
+                }
+                System.out.println(" ");
+            } else if (command.startsWith("mark")){
+                //Mark a task as done
+                int taskIndex = extractTaskIndex(command);
+                if (taskIndex > 0 && taskIndex <= counter) {
+                    tasks[taskIndex - 1].markAsDone();
+                    System.out.println("Nice! I've marked this task as done:");
+                    System.out.println("[" + tasks[taskIndex - 1].getStatusIcon() + "] " + tasks[taskIndex - 1].getDescription());
+                } else {
+                    System.out.println("Invalid task index. Please provide a valid task index.");
+
+                }
+                System.out.println(" ");
+            } else if (command.startsWith("unmark")){
+                // Mark a task as not done
+                int taskIndex = extractTaskIndex(command);
+                if (taskIndex > 0 && taskIndex <= counter) {
+                    tasks[taskIndex - 1].unmarkAsDone();
+                    System.out.println("OK, I've marked this task as not done yet:");
+                    System.out.println("[" + tasks[taskIndex - 1].getStatusIcon() + "] " + tasks[taskIndex - 1].getDescription());
+                } else {
+                    System.out.println(" Invalid task index. Please provide a valid task index.");
+                }
+                System.out.println(" ");
+            } else {
+                //Display the added task message
+                System.out.println("added: " + command);
+                System.out.println(" ");
+
+                //Add the command to the tasks array
+                tasks[counter] = new Task(command);
+                counter++;
+            }
+        }
+        //Close the scanner
+        scanner.close();
+    }
+
+    // Helper method to extract the task index from commands like "mark 2"
+    private static int extractTaskIndex(String command) {
+        try {
+            return Integer.parseInt(command.split(" ")[1]);
+        } catch (NumberFormatException | ArrayIndexOutOfBoundsException e) {
+            return -1;
+        }
+    }
+}
+
+// Task class to represent tasks
+class Task {
+    protected String description;
+    protected boolean isDone;
+
+    public Task(String description) {
+        this.description = description;
+        this.isDone = false;
+    }
+
+    public String getStatusIcon() {
+        return (isDone ? "X" : " "); // mark done task with X
+    }
+
+    public void markAsDone() {
+        this.isDone = true;
+    }
+
+    public void unmarkAsDone() {
+        this.isDone = false;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+}