[Jia Juin] iP

src/main/java/Duke.java

@@ -1,10 +1,99 @@
+import java.util.ArrayList;
+import java.util.Scanner;
+
 public class Duke {
+
+    public static Task getTheTask(ArrayList<Task> List, int j)
+    {
+        return List.get(j);
+    }
+
+    public static void addTask(String description, ArrayList<Task> List)
+    {
+        Task t = new Task(description);
+        List.add(t);
+    }
+
+    public static void updateCommand(Task task, ArrayList<Task> List, int count)
+    {
+        List.set(count,task);
+    }
+
     public static void main(String[] args) {
-        String logo = " ____        _        \n"
+        System.out.println("Hello ! I'm Duke\n");
+        System.out.println("What can I do for you ? \n");
+
+        String command;
+        ArrayList<Task> list = new ArrayList<>();
+        Scanner in = new Scanner (System.in);
+        String option_1 = "bye";
+        String option_2 = "list";
+        String option_3 = "done";
+
+        while (true)
+        {
+            // cannot use in.nextLine() since it will treat (done (taskNumber)) as one string
+            // thus will not lead us to the done statement
+            command = in.next();
+
+            if (command.equals(option_1))
+            {
+                System.out.println("------------------------");
+                System.out.println("Bye, see you again soon!");
+                System.out.println("------------------------");
+                System.exit(0);
+            }
+            else if (command.equals(option_2))
+            {
+                System.out.println("------------------------");
+                int count = 1;
+                System.out.println(" Here are the tasks in your list: ");
+                for (Task t : list)
+                {
+                    System.out.print(count);
+                    System.out.print(".[");
+                    System.out.print(t.getStatusIcon());
+                    System.out.print("]");
+                    System.out.println(t.description);
+                    count++;
+                }
+                System.out.println("------------------------");
+            }
+            else if (command.equals(option_3))
+            {
+                int taskNumber = in.nextInt();
+                Task t = getTheTask(list,taskNumber-1);
+                t.markAsDone();
+                updateCommand(t,list,taskNumber-1);
+                System.out.println("------------------------------------------");
+                System.out.print("Nice! I've marked this task as done: [");
+                System.out.print(t.getStatusIcon());
+                System.out.print("]");
+                System.out.println(t.description);
+                System.out.println("------------------------------------------");
+            }
+            else
+            {
+                // if there is no "done", "bye", "list" in the string
+                String splitter = in.nextLine();
+                // concat() method returns a String with the value of the String passed into the method,
+                // appended to the end of the String, used to invoke this method.
+                command = command.concat(splitter);
+                addTask(command,list);
+                Task newAddCommand = getTheTask(list, list.size()-1);
+                System.out.println("-------------------------------------");
+                System.out.print("Successfully added: ");
+                System.out.println(newAddCommand.description);
+                System.out.println("--------------------------------------");
+            }
+        }
+
+        /*String logo = " ____        _        \n"
                 + "|  _ \\ _   _| | _____ \n"
                 + "| | | | | | | |/ / _ \\\n"
                 + "| |_| | |_| |   <  __/\n"
                 + "|____/ \\__,_|_|\\_\\___|\n";
-        System.out.println("Hello from\n" + logo);
+        System.out.println("Hello from\n" + logo);*/
+
     }
 }

src/main/java/Task.java

@@ -0,0 +1,29 @@
+public class Task {
+    protected String description;
+    protected boolean isDone;
+
+    public Task(String description) {
+        this.description = description;
+        this.isDone = false;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+
+    public boolean isDone() {
+        return isDone;
+    }
+
+    public void setDescription(String description) {
+        this.description = description;
+    }
+
+    public void markAsDone() {
+        isDone = true;
+    }
+
+    public String getStatusIcon() {
+        return (isDone ? "\u2713" : "\u2718"); //return tick or X symbols
+    }
+}