[hongyijie06] iP

src/main/java/Duke.java

@@ -1,10 +1,48 @@
+import java.util.Scanner;
+
 public class Duke {
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
-                + "|  _ \\ _   _| | _____ \n"
-                + "| | | | | | | |/ / _ \\\n"
-                + "| |_| | |_| |   <  __/\n"
-                + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
+        Task[] list = new Task[100];
+
+        //greeting
+        System.out.println("Hello! I'm Apple");
+        System.out.println("What can I do for you?");
+
+        int index = 0;//number of items in the list
+        String line = " ";
+
+        while (!line.equals("bye")) {
+            Scanner input = new Scanner(System.in);
+            line = input.nextLine();
+
+            Task t = new Task(line);
+            String[] inputs = line.split(" ");
+
+            if (inputs[0].equals("mark")) {//mark as done
+                int idx = Integer.parseInt(inputs[1]);
+                list[idx - 1].markAsDone();
+                System.out.println("Nice! I've marked this task as done: ");
+                System.out.println("[" + list[idx - 1].getStatusIcon() + "]" + list[idx - 1].description);
+            } else if (inputs[0].equals("unmark")) {//unmark done
+                int idx = Integer.parseInt(inputs[1]);
+                list[idx - 1].unmarkDone();
+                System.out.println("OK, I've marked this task as not done yet: ");
+                System.out.println("[" + list[idx - 1].getStatusIcon() + "]" + list[idx - 1].description);
+            } else if (line.equals("list")) {//lists items
+                System.out.println("Here are the tasks in your list: ");
+                for (int i = 0; i < index; i++) {
+                    System.out.println((i + 1) + ". [" + list[i].getStatusIcon() + "]" + list[i].description);
+                }
+            } else if (line.equals("bye")) {//exit chat
+                break;
+            } else {//add items
+                list[index] = t;
+                System.out.println("added: " + t.description);
+                index++;
+            }
+
+        }
+        System.out.println("Bye. Hope to see you again soon!");
     }
+
 }

src/main/java/Task.java

@@ -0,0 +1,21 @@
+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" : " "); // mark done task with X
+    }
+
+    public void markAsDone() {
+        this.isDone = true;
+    }
+
+    public void unmarkDone() {
+        this.isDone = false;
+    }
+}
+