[Silin Chen] 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.toString() + "(by: " + by + ")";
+    }
+}

src/main/java/Duke.java

@@ -1,10 +1,93 @@
+import java.util.Scanner;
+
+
 public class Duke {
+    public static void hi() {
+        System.out.println("Hello I'm Duke");
+        System.out.println("What can I do for you?");
+    }
+
+    public static void bye() {
+        System.out.println("Bye. Hope to see you again soon!");
+    }
+
+    public static void running() {
+        Task[] tasks= new Task[100];
+        int taskNumber = 0;
+        String line;
+        Scanner in = new Scanner(System.in);
+        while (true) {
+            //new scanner
+            line = in.nextLine();
+            //if goodbye
+            if (line.equals("bye")) {
+                return;
+            }
+            //if want to list out tasks or mark as done or add items
+            if (line.equals("list")) {
+                for (int i = 0; i < taskNumber; i++) {
+                    System.out.println((i + 1) + "." + tasks[i]);
+                }
+            } else if (line.startsWith("done")) {
+                int index = Integer.parseInt(line.substring(5)) - 1;
+                tasks[index].setDone();
+                System.out.println("Nice! I've marked this task as done:");
+                System.out.println("  " + tasks[index].getStatusIcon() + " " + tasks[index].getDescription());
+            } else if (line.startsWith("todo")) {
+                tasks[taskNumber] = new ToDo(line.substring(5));
+                taskNumber++;
+                System.out.println("Got it. I've added this task:");
+                System.out.println("  " + tasks[taskNumber - 1]);
+                System.out.println("Now you have " + taskNumber + " tasks in the list");
+            } else if (line.startsWith("deadline")) {
+                String[] words = line.split(" ");
+                int index = 0;
+                String deadlineDescription = "";
+                String by = "";
+                for (int i = 0; i < words.length; i++) {
+                    if (words[i].equals("/by")) {
+                        index = i;
+                        break;
+                    }
+                }
+                for (int i = 1; i < index; i++) {
+                    deadlineDescription = deadlineDescription + words[i] + " ";
+                }
+                by = words[index + 1];
+                tasks[taskNumber] = new Deadline(deadlineDescription, by);
+                taskNumber++;
+                System.out.println("Got it. I've added this task:");
+                System.out.println("  " + tasks[taskNumber - 1]);
+                System.out.println("Now you have " + taskNumber + " tasks in the list");
+            } else if (line.startsWith("event")) {
+                String[] words = line.split(" ");
+                int index = 0;
+                String eventDescription = "";
+                String at = "";
+                for (int i = 0; i < words.length; i++) {
+                    if (words[i].equals("/at")) {
+                        index = i;
+                        break;
+                    }
+                }
+                for (int i = 1; i < index; i++) {
+                    eventDescription = eventDescription + words[i] + " ";
+                }
+                for (int i = index + 1; i < words.length; i++) {
+                    at = at + words[i] + " ";
+                }
+                tasks[taskNumber] = new Event(eventDescription, at);
+                taskNumber++;
+                System.out.println("Got it. I've added this task:");
+                System.out.println("  " + tasks[taskNumber - 1]);
+                System.out.println("Now you have " + taskNumber + " tasks in the list");
+            }
+        }
+    }
+
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
+        hi();
+        running();
+        bye();
     }
 }

src/main/java/Event.java

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

src/main/java/Task.java

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

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();
+    }
+}