[MichelleLiang0116] iP

src/main/java/Deadline.java

@@ -0,0 +1,13 @@
+public class Deadline extends Task {
+    protected final 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 +1,86 @@
+import java.util.ArrayList;
+import java.util.Scanner;
+
 public class Duke {
+    private final static ArrayList<Task> taskList = new ArrayList<>();
+    static String lineBreak = "-----------------";
+
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
+
+        System.out.println(lineBreak + '\n' + "Hello! I'm Duke" + '\n'
+                + "What can I do for you?" + '\n' + lineBreak);
+        String instruction;
+        while (true) {
+            Scanner myObj = new Scanner(System.in);
+            instruction = myObj.nextLine();
+            if (instruction.equalsIgnoreCase("list")) {
+                System.out.println(lineBreak + '\n'
+                        + "Here are the tasks in your list:");
+                for (int i = 0; i < taskList.size(); i++) {
+                    System.out.println(i + 1 + "." + taskList.get(i).toString());
+                }
+                System.out.println(lineBreak);
+            } else if (instruction.equalsIgnoreCase("bye")) {
+                System.out.println(lineBreak + '\n'
+                        + "Bye. Hope to see you again soon!" + '\n' + lineBreak);
+                break;
+            } else if (instruction.toLowerCase().contains("mark")) {
+                try {
+                    String[] split = instruction.split("\\s+");
+                    int toMark = Integer.parseInt(split[1]);
+                    if (split[0].equalsIgnoreCase("mark")) {
+                        taskList.get(toMark - 1).markAsDone();
+                        System.out.println("Nice! I've marked this task as done: ");
+                    } else {
+                        taskList.get(toMark - 1).markAsUnDone();
+                        System.out.println("OK, I've marked this task as not done yet: ");
+                    }
+                    System.out.println(taskList.get(toMark - 1).toString() + '\n' + lineBreak);
+                } catch (NullPointerException e) {
+                    System.out.println("Item is not in list!");
+                }
+            } else {
+                Task t;
+                if (instruction.toLowerCase().contains("deadline")) {
+                    try {
+                        String description = instruction.substring(instruction.indexOf(' ') + 1, instruction.indexOf('/'));
+                        String ddl = instruction.substring(instruction.indexOf('/') + 1);
+                        String by = ddl.replace("by", "");
+                        t = new Deadline(description, by);
+                        taskListAdd(t);
+                    } catch (StringIndexOutOfBoundsException e) {
+                        System.out.println(lineBreak + '\n' + "☹ OOPS!!! The description of a deadline cannot be empty." + '\n' + lineBreak);
+                    }
+                } else if (instruction.toLowerCase().contains("event")) {
+                    try {
+                        String substring = instruction.substring(instruction.indexOf(' ') + 1);
+                        String[] info = substring.split("/");
+                        String from = info[1].replace("from", "");
+                        String to = info[2].replace("to", "");
+                        t = new Event(info[0], from, to);
+                        taskListAdd(t);
+                    } catch (ArrayIndexOutOfBoundsException e) {
+                        System.out.println(lineBreak + '\n' + "☹ OOPS!!! The description of a event cannot be empty." + '\n' + lineBreak);
+                    }
+                } else if (instruction.toLowerCase().contains("todo")) {
+                    if (instruction.indexOf(' ') == -1) {
+                        System.out.println(lineBreak + '\n' + "☹ OOPS!!! The description of a todo cannot be empty." + '\n' + lineBreak);
+                    } else {
+                        String description = instruction.substring(instruction.indexOf(' ') + 1);
+                        t = new Todo(description);
+                        taskListAdd(t);
+                    }
+                } else {
+                    System.out.println(lineBreak + '\n' + "☹ OOPS!!! I'm sorry, but I don't know what that means :-(" + '\n' + lineBreak);
+                }
+            }
+        }
+    }
+
+    public static void taskListAdd(Task t) {
+        taskList.add(t);
+        System.out.println(lineBreak + '\n' + "Got it. I've added this task:");
+        System.out.println('\t' + t.toString());
+        System.out.println("Now you have " + taskList.size() + " tasks in the list." + '\n' + lineBreak);
     }
 }

src/main/java/Event.java

@@ -0,0 +1,15 @@
+public class Event extends Task {
+    private final String from;
+    private final 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 +1,26 @@
+public class Task {
+    private final String description;
+    protected boolean isDone;
+
+    public Task(String description) {
+        this.description = description;
+        this.isDone = false;
+    }
+
+    public String getStatusIcon() {
+        return (isDone ? "X" : " "); // mark done task with X
+    }
+
+    public void markAsDone() {
+        this.isDone = true;
+    }
+
+    public void markAsUnDone() {
+        this.isDone = false;
+    }
+
+    @Override
+    public String toString() {
+        return "[" + getStatusIcon() + "] " + description;
+    }
+}

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();
+    }
+}