[Sebastian Soewanto] iP

src/main/java/Deadline.java

@@ -0,0 +1,12 @@
+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 +1,64 @@
+import java.util.Scanner;
+
 public class Duke {
     public static void main(String[] args) {
         String logo = " ____        _        \n"
                 + "|  _ \\ _   _| | _____ \n"
                 + "| | | | | | | |/ / _ \\\n"
                 + "| |_| | |_| |   <  __/\n"
                 + "|____/ \\__,_|_|\\_\\___|\n";
+
+        String line = "____________________________________________________\n";
         System.out.println("Hello from\n" + logo);
+        System.out.print(line + "Hello! I'm Duke\n" + "What can I do for you?\n" + line);
+        Task[] task = new Task[100];
+        int taskCount = 0;
+        int errorCount = 0;
+        while(true) {
+            Scanner userInput = new Scanner(System.in);
+            String input = userInput.nextLine();
+            if (input.equals("bye")) {
+                System.out.print(line + "Bye. Hope to see you again soon!\n" + line);
+                break;
+            } else if (input.startsWith("mark")) {
+                int mark = Integer.parseInt(input.substring(5));
+                task[mark - 1].markDone();
+                System.out.print(line);
+            } else if (input.startsWith("unmark")) {
+                int unmark = Integer.parseInt(input.substring(7));
+                task[unmark - 1].umarkDone();
+                System.out.print(line);
+            } else if (input.equals("list")) {
+                System.out.print(line + "Here are the tasks in your list:\n");
+                for (int i = 0; i < taskCount; i++) {
+                    System.out.println(i + 1 + "." + task[i]);
+                }
+                System.out.print(line);
+            } else if (input.startsWith("todo")) {
+                task[taskCount] = new Todo(input.substring(5));
+                taskCount++;
+                System.out.println(line + "Got it. I've added this task:\n" + task[taskCount - 1]);
+                System.out.print("Now you have " + taskCount + " tasks in the list.\n" + line);
+            } else if (input.startsWith("deadline")) {
+                int byIndex = input.indexOf("/by");
+                task[taskCount] = new Deadline(input.substring(9, byIndex), input.substring(byIndex + 4));
+                taskCount++;
+                System.out.println(line + "Got it. I've added this task:\n" + task[taskCount - 1]);
+                System.out.print("Now you have " + taskCount + " tasks in the list.\n" + line);
+            } else if (input.startsWith("event")) {
+                int fromIndex = input.indexOf("/from");
+                int toIndex = input.indexOf("/to");
+                task[taskCount] = new Event(input.substring(6, fromIndex), input.substring(fromIndex + 6, toIndex), input.substring(toIndex + 4));
+                taskCount++;
+                System.out.println(line + "Got it. I've added this task:\n" + task[taskCount - 1]);
+                System.out.print("Now you have " + taskCount + " tasks in the list.\n" + line);
+            } else if (errorCount == 10) {
+                System.out.print(line +"Maybe you can try in another language. Goodbye!\n" + line);
+                break;
+            } else {
+                System.out.print(line + "Sorry, could you please repeat what you just said\n" + line);
+                errorCount++;
+            }
+        }
     }
 }

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.toString() + "(from: " + from + "to: " + to + ")";
+    }
+}

src/main/java/Task.java

@@ -0,0 +1,36 @@
+public class Task {
+    protected String description;
+    protected boolean isDone;
+
+    public Task(String description) {
+        this.isDone = false;
+        this.description = description;
+    }
+
+    public void markDone() {
+        isDone = true;
+        System.out.println("Nice! I've marked this task as done:\n" + this);
+    }
+
+    public void umarkDone() {
+        isDone = false;
+        System.out.println("OK, I've marked this task as not done yet:\n" + this);
+    }
+    public String getDescription() {
+        return description;
+    }
+
+    public String status(){
+        if(isDone) {
+            return "X";
+        }
+        else {
+            return " ";
+        }
+    }
+
+    @Override
+    public String toString() {
+        return "[" + status() + "]" + getDescription();
+    }
+}

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();
+    }
+}