Add task type

Tasks do not have a type, making it hard to tell what is the nature of the task

Add types to differentiate between different types of task

src/main/java/Deadline.java

@@ -0,0 +1,13 @@
+public class Deadline extends Task{
+    protected String by;
+
+    public Deadline(String description, String date) {
+        super(description);
+        this.by = date;
+    }
+
+    @Override
+    public String toString() {
+        return "[D]" + super.toString() + " (by: " + by + ")";
+    }
+}

src/main/java/Duke.java

@@ -14,13 +14,15 @@ public static void main(String[] args) {
         System.out.println(introduction);
 
         while (true) {
+            //receive user input
             nextTask = inputScanner.nextLine();
-
+            //check if userinput is bye, break if true
             if (nextTask.equals("bye")) {
                 break;
             }
-
+            //if userinput equals list, return task list
             if (nextTask.equals("list")) {
+                System.out.println("Here are the tasks in your list:\n");
                 for (int i = 0; i < taskList.length; i ++) {
                     if (taskList[i] == null) {
                         break;
@@ -29,27 +31,47 @@ public static void main(String[] args) {
                 }
                 continue;
             }
-
-            if (nextTask.length() > 4 && nextTask.substring(0,4).equals("mark")) {
+            //if userinput equals mark, check which task and mark it
+            if (nextTask.length() > 4 && nextTask.substring(0, 4).equals("mark")) {
                 int toMark = Integer.parseInt(nextTask.substring(5)) - 1;
                 taskList[toMark].mark();
                 String markResponse = "Nice! I've marked this task as done:\n ";
                 System.out.println(markResponse + taskList[toMark].toString());
                 continue;
             }
-
-            if (nextTask.length() > 6 && nextTask.substring(0,6).equals("unmark")) {
+            //if userinput equals unmark, check which task and unmark
+            if (nextTask.length() > 6 && nextTask.substring(0, 6).equals("unmark")) {
                 int toMark = Integer.parseInt(nextTask.substring(7)) - 1;
                 taskList[toMark].unmark();
                 String markResponse = "Ok, I've marked this task as not done yet:\n ";
                 System.out.println(markResponse + taskList[toMark].toString());
                 continue;
             }
+            //if userinput equals to do add new to do task to list
+            if (nextTask.length() > 4 && nextTask.substring(0, 4).equals("todo")) {
+                taskList[Task.count] = new ToDo(nextTask);
+                System.out.println("Got it. I've added this task:\n " + taskList[Task.count - 1]
+                        + "\nNow you have " + (Task.count) + " tasks in the list.");
+            }
 
-            taskList[Task.count] = new Task(nextTask);
-
-            System.out.println("added: " + nextTask);
-
+            //if userinput equals deadline add new deadline task to list
+            if (nextTask.length() > 8 && nextTask.substring(0, 8).equals("deadline")) {
+                int divisor = nextTask.indexOf("/by");
+                String description = nextTask.substring(9, divisor - 1);
+                String date = nextTask.substring(divisor + 4);
+                taskList[Task.count] = new Deadline(description, date);
+                System.out.println("Got it. I've added this task:\n " + taskList[Task.count - 1]
+                        + "\nNow you have " + (Task.count) + " tasks in the list.");
+            }
+            //if userinput equals event add new event task to list
+            if (nextTask.length() > 7 && nextTask.substring(0,5).equals("event")) {
+                int divisor = nextTask.indexOf("/at");
+                String description = nextTask.substring(6, divisor - 1);
+                String date = nextTask.substring(divisor + 4);
+                taskList[Task.count] = new Event(description, date);
+                System.out.println("Got it. I've added this task:\n " + taskList[Task.count - 1]
+                        + "\nNow you have " + (Task.count) + " tasks in the list.");
+            }
         }
 
         System.out.println(farewell);

src/main/java/Event.java

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

src/main/java/Task.java

@@ -8,6 +8,7 @@ public Task(String description) {
         this.description = description;
         this.isDone = false;
         count++;
+
     }
 
     public void mark(){

src/main/java/ToDo.java

@@ -0,0 +1,11 @@
+public class ToDo extends Task{
+
+    public ToDo(String description) {
+        super(description);
+    }
+
+    @Override
+    public String toString() {
+        return "[T]" + super.toString();
+    }
+}