[Lam Yue Wei] iP

src/main/java/Deadline.java

@@ -0,0 +1,11 @@
+public class Deadline extends Task {
+    String date;
+    public Deadline(String description, String date) {
+        super(description);
+        this.date = date;
+    }
+
+    public String toString() {
+        return "[D]" + super.toString() + " (by: " + this.date + ")";
+    }
+}

src/main/java/Duke.java

@@ -1,10 +1,73 @@
+import java.util.Scanner;
+import java.util.Arrays;
+
 public class Duke {
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
+        Task[] tasks = new Task[100];
+        int count = 0;
+        boolean isBye = false;
+        System.out.println("    ____________________________________________________________");
+        System.out.println("    Hello! I'm Duke");
+        System.out.println("    What can I do for you?");
+        System.out.println("    ____________________________________________________________");
+        Scanner sc = new Scanner(System.in);
+        while (!isBye) {
+            String description;
+            String date;
+            System.out.println();
+            String string = sc.nextLine();
+            System.out.println("    ____________________________________________________________");
+            String[] stringSplit = string.split(" ");
+            switch (stringSplit[0]) {
+            case "list":
+                System.out.println("     Here are the tasks in your list:");
+                for (int i = 0; i < count; i++) {
+                    System.out.println("     " + (i + 1) + "." + tasks[i].toString());
+                }
+                break;
+            case "done":
+                int done = Integer.parseInt(stringSplit[1]) - 1;
+                tasks[done].markAsDone();
+                System.out.println("     Nice! I've marked this task as done: ");
+                System.out.println("       " + tasks[done].toString());
+                break;
+            case "bye":
+                System.out.println("    Bye. Hope to see you again soon!");
+                isBye = true;
+                break;
+            case "todo":
+                description = String.join(" ", Arrays.copyOfRange(stringSplit, 1, stringSplit.length));
+                tasks[count] = new Todo(description);
+                System.out.println("     Got it. I've added this task: ");
+                System.out.println("       " + tasks[count].toString());
+                count++;
+                System.out.println("     Now you have " + count + " tasks in the list.");
+                break;
+            case "deadline":
+                description = string.substring(0, string.indexOf(" /by")).replace("deadline ", "");
+                date = string.substring(string.indexOf("/by ")).replace("/by ", "");
+                tasks[count] = new Deadline(description, date);
+                System.out.println("     Got it. I've added this task: ");
+                System.out.println("       " + tasks[count].toString());
+                count++;
+                System.out.println("     Now you have " + count + " tasks in the list.");
+                break;
+            case "event":
+                description = string.substring(0, string.indexOf(" /at")).replace("event ", "");
+                date = string.substring(string.indexOf("/at ")).replace("/at ", "");
+                tasks[count] = new Event(description, date);
+                System.out.println("     Got it. I've added this task: ");
+                System.out.println("       " + tasks[count].toString());
+                count++;
+                System.out.println("     Now you have " + count + " tasks in the list.");
+                break;
+            default: //add Task into List
+                tasks[count] = new Task(string);
+                System.out.println("     added: " + tasks[count].getDescription());
+                count++;
+                break;
+            }
+            System.out.println("    ____________________________________________________________");
+        }
     }
 }

src/main/java/Event.java

@@ -0,0 +1,12 @@
+public class Event extends Task {
+    String date;
+
+    public Event(String description, String date) {
+        super(description);
+        this.date = date;
+    }
+
+    public String toString() {
+        return "[E]" + super.toString() + " (at: " + this.date + ")";
+    }
+}

src/main/java/Task.java

@@ -0,0 +1,30 @@
+public class Task {
+    protected String description;
+    protected boolean isDone;
+
+    public Task(String description) {
+        this.description = description;
+        this.isDone = false;
+    }
+
+    public String getStatusIcon() {
+        return (isDone ? "\u2713" : "\u2718"); //return tick or X symbols
+    }
+
+    // Not immutable version
+    public void markAsDone() {
+        this.isDone = true;
+    }
+
+    public String getDescription() {
+        return this.description;
+    }
+
+    public boolean getIsDone() {
+        return this.isDone;
+    }
+
+    public String toString() {
+        return "[" + getStatusIcon() + "] " + getDescription();
+    }
+}

src/main/java/Todo.java

@@ -0,0 +1,9 @@
+public class Todo extends Task {
+    public Todo(String description) {
+        super(description);
+    }
+
+    public String toString() {
+        return "[T]" + super.toString();
+    }
+}