[Gavin Cho] iP

src/main/java/Deadline.java

@@ -0,0 +1,14 @@
+public class Deadline extends Task {
+
+    protected String by;
+
+    public Deadline(String description, String by) {
+        super(description);
+        this.by = by;
+    }
+
+    @Override
+    public String toString() {
+        return "[D]" + super.toString() + " (by: " + by + ")";
+    }
+}

src/main/java/Duke.java

@@ -1,10 +1,130 @@
+import java.util.Scanner;
+import java.util.ArrayList;
+
 public class Duke {
-    public static void main(String[] args) {
+
+    public Task[] tasks;
+
+
+    public static void main(String[] args) throws DukeException {
         String logo = " ____        _        \n"
                 + "|  _ \\ _   _| | _____ \n"
                 + "| | | | | | | |/ / _ \\\n"
                 + "| |_| | |_| |   <  __/\n"
                 + "|____/ \\__,_|_|\\_\\___|\n";
         System.out.println("Hello from\n" + logo);
+        System.out.println("___________________________________");
+        System.out.println("Hello! I'm Duke\n What can I do for you?");
+        System.out.println("___________________________________");
+
+        Task[] tasks = new Task[100];
+        int counter = 0;
+        ArrayList<Task> collection = new ArrayList<>();
+
+        Scanner sc = new Scanner(System.in);
+        String input = sc.nextLine();
+
+
+
+        while (!input.equals("bye")) {
+            if (input.equals("list")) {
+                System.out.println("___________________________________");
+                for (int i = 0; i < counter; i++) {
+                    System.out.println( (i+1) + "."
+                            + collection.get(i).toString());
+                }
+                System.out.println("___________________________________");
+                input = sc.next();
+
+            }
+
+            else if (input.equals("mark")) {
+                int number = sc.nextInt();
+                collection.get(number-1).mark();
+                System.out.println("___________________________________");
+                System.out.println("Nice! I've marked this task done: " + "\n"
+                        + "[" + collection.get(number-1).getStatusIcon() + "] " +
+                        collection.get(number-1).description);
+                System.out.println("___________________________________");
+                input = sc.next();
+            }
+
+            else if (input.equals("unmark")) {
+                int number = sc.nextInt();
+                collection.get(number-1).unmark();
+                System.out.println("___________________________________");
+                System.out.println("OK, I've marked this task as not done yet: " + "\n"
+                        + "[" + collection.get(number-1).getStatusIcon() + "] " +
+                        collection.get(number-1).description);
+                System.out.println("___________________________________");
+                input = sc.next();
+            }
+
+            else if (input.equals("deadline")) {
+                String what = sc.nextLine();
+                if (what.equals("")) throw new DukeException("☹ OOPS!!! The description of a deadline cannot be empty.");
+                String byWhen = sc.nextLine();
+                collection.add(new Deadline(what, byWhen));
+                System.out.println("___________________________________");
+                System.out.println("Got it. I've added this task:" + "\n"
+                        + "  " + collection.get(counter).toString() + "\n"
+                        + "Now you have " + (counter+1) + " tasks in the list.");
+                System.out.println("___________________________________");
+                counter++;
+                input = sc.nextLine();
+            }
+
+            else if (input.equals("todo")) {
+                String what = sc.nextLine();
+                if (what.equals("")) throw new DukeException("☹ OOPS!!! The description of a todo cannot be empty.");
+                collection.add(new Todo(what));
+                System.out.println("___________________________________");
+                System.out.println("Got it. I've added this task:" + "\n"
+                        + "  " + collection.get(counter).toString() + "\n"
+                        + "Now you have " + (counter+1) + " tasks in the list.");
+                System.out.println("___________________________________");
+                counter++;
+                input = sc.nextLine();
+            }
+
+            else if (input.equals("event")) {
+                String what = sc.nextLine();
+                if (what.equals("")) throw new DukeException("☹ OOPS!!! The description of a event cannot be empty.");
+                String atWhen = sc.nextLine();
+                collection.add(new Event(what, atWhen));
+                System.out.println("___________________________________");
+                System.out.println("Got it. I've added this task:" + "\n"
+                        + "  " + collection.get(counter).toString() + "\n"
+                        + "Now you have " + (counter+1) + " tasks in the list.");
+                System.out.println("___________________________________");
+                counter++;
+                input = sc.nextLine();
+            }
+
+            else if (input.equals("delete")) {
+                int number = sc.nextInt();
+                Task temp = collection.get(number-1);
+                collection.remove(number-1);
+                counter--;
+                System.out.println("___________________________________");
+                System.out.println("Noted. I've removed this task:" + "\n"
+                        + "  " + temp.toString() + "\n"
+                        + "Now you have " + counter + " tasks in the list.");
+                System.out.println("___________________________________");
+                input = sc.next();
+
+            }
+
+            else {
+                System.out.println("___________________________________");
+                throw new DukeException(" ☹ OOPS!!! I'm sorry, but I don't know what that means :-(");
+
+            }
+
+        }
+
+        System.out.println("___________________________________");
+        System.out.println("Bye. Hope to see you again soon!");
+        System.out.println("___________________________________");
     }
 }

src/main/java/DukeException.java

@@ -0,0 +1,6 @@
+public class DukeException extends Exception {
+
+    public DukeException(String message) {
+        super(message);
+    }
+}

src/main/java/Event.java

@@ -0,0 +1,14 @@
+public class Event extends Task{
+
+    protected String at;
+
+    public Event(String description, String at) {
+        super(description);
+        this.at = at;
+    }
+
+    @Override
+    public String toString() {
+        return "[E]" + super.toString() + " (at: " + at + ")";
+    }
+}

src/main/java/Task.java

@@ -0,0 +1,27 @@
+public 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 mark() {
+        this.isDone = true;
+    }
+
+    public void unmark() {
+        this.isDone = false;
+    }
+
+    @Override
+    public String toString() {
+        return "[" + this.getStatusIcon() + "] " + description;
+    }
+
+}

src/main/java/Todo.java

@@ -0,0 +1,12 @@
+public class Todo extends Task {
+
+    public Todo(String description) {
+        super(description);
+    }
+
+    @Override
+    public String toString() {
+        return "[T]" + super.toString();
+    }
+
+}