fix bug for todo

data/taskList.txt

@@ -1,2 +1,3 @@
-D |   | ip | 2024-02-23 2359
-E |   | sports | 2024-02-23 1700 | 2024-02-23 1800
+D | X | ip | 2024-02-23 2359
+E | X | dinner | 2024-02-23 1700 | 2024-02-23 1800
+T | X | hello

src/main/java/felix/Felix.java

@@ -62,7 +62,6 @@ public static void main(String[] args) throws IOException, FelixException {
 
     public String getResponse(String input) {
         try {
-            tasks = storage.getTasksFromFile();
             Command command = parser.getCommand(input);
             return command.execute(tasks, ui, storage);
         } catch (Exception e) {

src/main/java/felix/task/Task.java

@@ -61,7 +61,7 @@ public boolean hasKeyword(String keyword) {
      *
      * @return task represented by file line.
      */
-    public static Task createTaskFromFileLine(String line) {
+    public static Task createTaskFromFileLine(String line) throws IndexOutOfBoundsException {
         String[] words = line.split(" \\| ");
         Task task;
         if (words[0].equals("T")) {

src/main/java/felix/utils/Parser.java

@@ -82,6 +82,9 @@ private Task generateTask(String[] words) throws FelixException {
         Task task;
         if (words[0].equals("todo")) {
             try {
+                if (words[1].isEmpty()) {
+                    throw new FelixException("The description of a todo cannot be empty");
+                }
                 task = new ToDo(words[1]);
             } catch (IndexOutOfBoundsException e) {
                 throw new FelixException("The description of a todo cannot be empty");

src/main/java/felix/utils/Storage.java

@@ -62,6 +62,8 @@ public TaskList getTasksFromFile() throws FelixException {
             throw new FelixException("Cannot read from file");
         } catch (DateTimeParseException err) {
             throw new FelixException("datetime not in the format \"yyyy-MM-dd HHmm\"");
+        } catch (IndexOutOfBoundsException err) {
+            throw new FelixException("file line is in wrong format");
         }
     }