[Ong Jun Lin Jeremiah] 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.getStatusIcon() + super.getDescription() + "(" + by + ")";
+    }
+}

src/main/java/Duke.java

@@ -1,10 +1,90 @@
-public class Duke {
+import java.util.Scanner;
+import java.util.ArrayList;
+
+public class
+Duke {
     public static void main(String[] args) {
         String logo = " ____        _        \n"
                 + "|  _ \\ _   _| | _____ \n"
                 + "| | | | | | | |/ / _ \\\n"
                 + "| |_| | |_| |   <  __/\n"
                 + "|____/ \\__,_|_|\\_\\___|\n";
         System.out.println("Hello from\n" + logo);
+
+        String line = "____________________________________________________________\n";
+
+        String greeting = (line + "Hello! I'm Duke\n" + "What can I do for you?\n" + line);
+
+        String goodBye = (line + "Bye. Hope to see you again soon!\n" + line);
+
+        System.out.println(greeting);
+        Scanner myObj = new Scanner(System.in);
+        String userInput;
+        String userInputParts[];
+        userInput = myObj.nextLine();
+        ArrayList<Task> taskList = new ArrayList<Task>(100);
+
+        while (!userInput.equals("bye")) {
+            if (userInput.equals("list")) {
+                System.out.println("Here are the tasks in your list:\n");
+                for (Task item : taskList) {
+                    System.out.print((taskList.indexOf(item) + 1) + ".");
+                    System.out.println(item.toString());
+                }
+                System.out.println(line);
+            }
+
+            //For marking and unmarking items in the list
+            else if(userInput.contains("mark")) {
+                int itemNumber = Integer.parseInt(userInput.replaceAll("[^0-9]", "")) - 1;
+                if (userInput.contains("unmark")) {
+                    taskList.get(itemNumber).markAsUnDone();
+                    System.out.println("OK, I've marked this task as not done yet:\n" + "    "
+                            + taskList.get(itemNumber).getStatusIcon() + taskList.get(itemNumber).getDescription());
+                    System.out.println(line);
+                } else {
+                    taskList.get(itemNumber).markAsDone();
+                    System.out.println("Nice! I've marked this task as done:\n" + taskList.get(itemNumber).getStatusIcon() + taskList.get(itemNumber).getDescription());
+                    System.out.println(line);
+                }
+            } else if (userInput.contains("event")){
+                userInput = userInput.replace("event","");
+                userInputParts = userInput.split("/");
+                Event event = new Event(userInputParts[0], userInputParts[1], userInputParts[2]);
+                taskList.add(event);
+                System.out.println("Got it. I've added this task: ");
+                System.out.println("[E][ ] " + event.description + "(" + event.from + event.to + ")");
+                System.out.println("Now you have " + taskList.size() + " tasks in the list. ");
+                System.out.println(line);
+            } else if (userInput.contains("deadline")) {
+                userInput = userInput.replace("deadline","");
+                userInputParts = userInput.split("/");
+                Deadline deadline = new Deadline(userInputParts[0], userInputParts[1]);
+                taskList.add(deadline);
+                System.out.println("[D][ ] " + deadline.description + "(" + userInputParts[1] + ")");
+                System.out.println("Now you have " + taskList.size() + " tasks in the list. ");
+                System.out.println(line);
+            } else if (userInput.contains("todo")){
+                userInput = userInput.replace("todo","");
+                userInput = userInput.replace(" ", "");
+                if (userInput.isEmpty()){
+                    System.out.println("Please do not leave the description empty!");
+                    System.out.println(line);
+                    continue;
+                }
+                Task task = new Task(userInput);
+                taskList.add(task);
+                System.out.println("Got it. I've added this task: ");
+                System.out.println("[T][ ] " + task.description);
+                System.out.println("Now you have " + taskList.size() + " tasks in the list. ");
+                System.out.println(line);
+            } else {
+                System.out.println("Please enter a valid command!");
+                System.out.println(line);
+            }
+
+            userInput = myObj.nextLine();
+        }
+        System.out.println(goodBye);
     }
-}
+}

src/main/java/Event.java

@@ -0,0 +1,16 @@
+public class Event extends Task{
+    protected String from;
+    protected String to;
+
+    public Event(String description, String from, String to) {
+        super(description);
+        this.from = from;
+        this.to = to;
+    }
+
+    @Override
+    public String toString(){
+        return "[E]" +  super.getStatusIcon() + super.getDescription() + "(" + from + to + ")";
+    }
+
+}

src/main/java/Task.java

@@ -0,0 +1,34 @@
+public class Task {
+    protected String description;
+    protected boolean isDone;
+
+    public String getDescription() {
+        return description;
+    }
+
+    public Task(String description) {
+        this.description = description;
+        this.isDone = false;
+    }
+
+    public void markAsDone() {
+
+        this.isDone = true;
+    }
+
+    public void markAsUnDone()
+    {
+        this.isDone = false;
+    }
+
+    public String getStatusIcon() {
+        return (isDone ? "[X]" : "[ ]"); // mark done task with X
+    }
+
+    @Override
+    public String toString(){
+        return "[T]" + this.getStatusIcon() + description;
+    }
+}
+
+