diff --git a/src/main/java/Deadline.java b/src/main/java/Deadline.java
new file mode 100644
index 0000000000..0a0ef60ec3
--- /dev/null
+++ b/src/main/java/Deadline.java
@@ -0,0 +1,11 @@
+public class Deadline extends Task {
+    public Deadline(String description, String deadline) {
+        super(description);
+        this.deadline=deadline;
+    }
+
+    @Override
+    public String toString() {
+        return "[D]"  + super.toString() + "(" + this.deadline + ")";
+    }
+}
diff --git a/src/main/java/Duke.java b/src/main/java/Duke.java
index 5d313334cc..751425944a 100644
--- a/src/main/java/Duke.java
+++ b/src/main/java/Duke.java
@@ -1,10 +1,122 @@
+import java.util.Scanner;
+
+
 public class Duke {
+    public static int listCount = 0;
+    public static Task[] list = new Task[100];
+
+
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
-    }
-}
+        //Generates a greeting
+        greet();
+        request();
+    }
+
+    public static void bidGoodbye(){
+        System.out.println("Bye. Hope to see you again soon!");
+    }
+
+    public static void printList(){
+        int i;
+        for (i = 0; i < listCount; i++) {
+            System.out.println(listCount + "." + list[i]);
+        }
+    }
+
+    public static void markDone(String word){
+        int num = Integer.parseInt(word);
+        list[num - 1].isDone = true;
+        System.out.println("Nice! I've marked this task as done:");
+        System.out.println("[✓] " + list[num - 1].description);
+        System.out.println("Now you have " + listCount + " tasks in the list");
+    }
+
+    public static void todo(String line){
+        try {
+            list[listCount] = new ToDo(line);
+            System.out.println("Got it. I've added this task:");
+            System.out.println(list[listCount]);
+            System.out.println("Now you have " + listCount + " tasks in the list");
+            listCount++;
+        }catch(ArrayIndexOutOfBoundsException e){
+            System.out.println("____________________________________________________________\n" +
+                    "0x00002639 OOPS!!! The description of a todo cannot be empty.");
+            System.out.println("____________________________________________________________\n");
+        }
+    }
+
+    public static void Event(String line){
+        try{
+            int index = line.indexOf('/');
+            list[listCount] = new Event(line.substring(0, index - 1), line.substring(index + 1));
+            System.out.println("Got it. I've added this task:");
+            System.out.println(list[listCount]);
+            System.out.println("Now you have " + listCount + " tasks in the list");
+            listCount++;
+        }catch(ArrayIndexOutOfBoundsException e){
+            System.out.println("____________________________________________________________\n" +
+                    "☹ OOPS!!! The description of an event cannot be empty.");
+            System.out.println("____________________________________________________________\n");
+        }
+    }
+
+    public static void Deadline(String line){
+        try {
+            int index = line.indexOf('/');
+            list[listCount] = new Deadline(line.substring(0, index - 1), line.substring(index + 1));
+            System.out.println("Got it. I've added this task:");
+            System.out.println(list[listCount]);
+            System.out.println("Now you checkBoundsBeginEnd(have " + listCount + " tasks in the list");
+            listCount++;
+        }catch(ArrayIndexOutOfBoundsException e){
+            System.out.println("____________________________________________________________\n" +
+                    "☹ OOPS!!! The description of a deadline cannot be empty.");
+            System.out.println("____________________________________________________________\n");
+        }
+    }
+
+
+    public static void greet(){
+        System.out.println("Hello! I'm Duke");
+        System.out.println("What can I do for you?");
+    }
+
+    public static void request() {
+        Scanner in = new Scanner(System.in);
+        String line;
+        while (true) {
+            line = in.nextLine();
+            String [] words = line.split(" ");
+            switch (words[0]) {
+                case "bye":
+                    bidGoodbye();
+                    break;
+                case "list":
+                    printList();
+                    break;
+                case "done":
+                    markDone(line.substring(5));
+                    break;
+                case "todo":
+                    todo(line.substring(5));
+                    break;
+                case "event":
+                    Event(line.substring(6));
+                    break;
+                case "deadline":
+                    Deadline(line.substring(9));
+                    break;
+                //case "delete":
+
+                default:
+                    System.out.println("Command not supported");
+                    break;
+            }
+        }
+    }
+
+
+
+
+
+}
\ No newline at end of file
diff --git a/src/main/java/Event.java b/src/main/java/Event.java
new file mode 100644
index 0000000000..5be2875002
--- /dev/null
+++ b/src/main/java/Event.java
@@ -0,0 +1,11 @@
+public class Event extends Task {
+    public Event(String description, String deadline) {
+        super(description);
+        this.deadline=deadline;
+    }
+
+    @Override
+    public String toString() {
+        return "[E]" + super.toString()+ "(" + this.deadline + ")";
+    }
+}
diff --git a/src/main/java/Task.java b/src/main/java/Task.java
new file mode 100644
index 0000000000..eb7add96c7
--- /dev/null
+++ b/src/main/java/Task.java
@@ -0,0 +1,23 @@
+public class Task {
+    protected String description;
+    protected boolean isDone;
+    protected String deadline;
+    protected int listCount;
+
+
+    public Task(String description) {
+        this.description = description;
+        this.isDone = false;
+        this.listCount = 0;
+        this.deadline = " none";
+    }
+    public String statusicon(){
+        return (this.isDone?"[✓]":"[✗]");
+    }
+    @Override
+    public String toString(){
+        return  statusicon() + description;
+    }
+
+
+}
\ No newline at end of file
diff --git a/src/main/java/ToDo.java b/src/main/java/ToDo.java
new file mode 100644
index 0000000000..023c97b369
--- /dev/null
+++ b/src/main/java/ToDo.java
@@ -0,0 +1,10 @@
+public class ToDo extends Task{
+    public ToDo(String description) {
+        super(description);
+    }
+
+    @Override
+    public String toString() {
+        return "[T]" + super.toString();
+    }
+}