[yuhengr] 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

@@ -1,3 +1,5 @@
+import java.util.Scanner;
+
 public class Duke {
     public static void main(String[] args) {
         String logo = " ____        _        \n"
@@ -6,5 +8,72 @@ public static void main(String[] args) {
                 + "| |_| | |_| |   <  __/\n"
                 + "|____/ \\__,_|_|\\_\\___|\n";
         System.out.println("Hello from\n" + logo);
+        System.out.println("I'm Ekud! What can I do for you?");
+
+        String userInput;
+        Scanner in = new Scanner(System.in);
+        Task[] tasks = new Task[100];
+        int taskCount = 0;
+        userInput = in.nextLine();
+
+        while(!userInput.equals("bye")){
+            String[] words = userInput.split(" ");
+            if(userInput.equals("list")){
+                System.out.println("Here are the tasks in your list:");
+                for(int i = 0; i < taskCount; i++){
+                    System.out.println((i + 1) + "." + tasks[i]);
+                }
+            }
+            else if(words[0].equals("mark")){
+                int taskIndex = Integer.parseInt(words[1]) - 1;
+                tasks[taskIndex].markAsDone();
+                System.out.println("Nice! I've marked this task as done:");
+                System.out.println(tasks[taskIndex]);
+            }
+            else if(words[0].equals("unmark")){
+                int taskIndex = Integer.parseInt(words[1]) - 1;
+                tasks[taskIndex].markAsNotDone();
+                System.out.println("OK, I've marked this task as not done yet:");
+                System.out.println(tasks[taskIndex]);
+            }
+            else if(words[0].equals("todo")){
+                int dividerPosition = userInput.indexOf(" ");
+                tasks[taskCount] = new Todo(userInput.substring(dividerPosition + 1));
+                System.out.println("Got it. I've added this task:");
+                System.out.println(tasks[taskCount]);
+                taskCount++;
+                System.out.println("Now you have " + taskCount + " tasks in the list.");
+            }
+            else if(words[0].equals("deadline")){
+                int dividerPosition = userInput.indexOf(" ");
+                int slashPosition = userInput.indexOf("/by");
+                tasks[taskCount] = new Deadline(userInput.substring(dividerPosition + 1, slashPosition - 1), userInput.substring(slashPosition + 4));
+                System.out.println("Got it. I've added this task:");
+                System.out.println(tasks[taskCount]);
+                taskCount++;
+                System.out.println("Now you have " + taskCount + " tasks in the list.");
+            }
+            else if(words[0].equals("event")){
+                int dividerPosition = userInput.indexOf(" ");
+                int fromPosition = userInput.indexOf("/from");
+                int toPosition = userInput.indexOf("/to");
+
+                tasks[taskCount] = new Event(userInput.substring(dividerPosition + 1, fromPosition - 1), userInput.substring(fromPosition + 6, toPosition - 1), userInput.substring(toPosition + 4));
+                System.out.println("Got it. I've added this task:");
+                System.out.println(tasks[taskCount]);
+                taskCount++;
+                System.out.println("Now you have " + taskCount + " tasks in the list.");
+            }
+            else{
+                tasks[taskCount] = new Todo(userInput);
+                System.out.println("Got it. I've added this task.");
+                System.out.println(tasks[taskCount]);
+                taskCount++;
+                System.out.println("Now you have " + taskCount + " tasks in the list.");
+            }
+            userInput = in.nextLine();
+        }
+
+        System.out.println("Bye. Hope to see you again soon.");
     }
 }

src/main/java/Event.java

@@ -0,0 +1,15 @@
+public class Event extends Task{
+
+    protected String startTime;
+    protected String endTime;
+
+    public Event(String description, String startTime, String endTime) {
+        super(description);
+        this.startTime = startTime;
+        this.endTime = endTime;
+    }
+
+    public String toString() {
+        return "[E]" + super.toString() + " (from: " + this.startTime + " to: " + this.endTime + ")";
+    }
+}

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 String getStatusIcon() {
+        return (isDone ? "X" : " ");
+    }
+
+    public void markAsDone() {
+        this.isDone = true;
+    }
+
+    public void markAsNotDone() {
+        this.isDone = false;
+    }
+
+    @Override
+    public String toString() {
+        return String.format("[%s] %s", this.getStatusIcon(), this.description);
+    }
+}

src/main/java/Todo.java

@@ -0,0 +1,10 @@
+public class Todo extends Task{
+
+    public Todo(String description) {
+        super(description);
+    }
+
+    public String toString() {
+        return "[T]" + super.toString();
+    }
+}