Move files into packages

src/main/data/duke.txt

@@ -1,7 +0,0 @@
-T | 1 | read book
-D | 0 | return book | 2019-10-10
-T | 0 | join sports club
-T | 1 | test this
-T | 1 | this thing
-D | 0 | homework  | 2020-10-02
-E | 0 | birthday  | 2020-12-05 13:00

src/main/java/duke/AddCommand.java → src/main/java/duke/Command/AddCommand.java

@@ -1,5 +1,9 @@
-package duke;
+package duke.Command;
 
+import duke.DukeException;
+import duke.Storage;
+import duke.TaskList;
+import duke.Ui;
 import duke.task.Deadline;
 import duke.task.Event;
 import duke.task.Task;

src/main/java/duke/Command.java → src/main/java/duke/Command/Command.java

@@ -1,4 +1,9 @@
-package duke;
+package duke.Command;
+
+import duke.DukeException;
+import duke.Storage;
+import duke.TaskList;
+import duke.Ui;
 
 public abstract class Command {
     public abstract void runCommand(TaskList taskList, Ui ui, Storage storage) throws DukeException;

src/main/java/duke/DeleteCommand.java → src/main/java/duke/Command/DeleteCommand.java

@@ -1,4 +1,9 @@
-package duke;
+package duke.Command;
+
+import duke.DukeException;
+import duke.Storage;
+import duke.TaskList;
+import duke.Ui;
 
 public class DeleteCommand extends Command {
     private int index;

src/main/java/duke/DoneCommand.java → src/main/java/duke/Command/DoneCommand.java

@@ -1,4 +1,9 @@
-package duke;
+package duke.Command;
+
+import duke.DukeException;
+import duke.Storage;
+import duke.TaskList;
+import duke.Ui;
 
 public class DoneCommand extends Command {
     private int index;

src/main/java/duke/ExitCommand.java → src/main/java/duke/Command/ExitCommand.java

@@ -1,6 +1,12 @@
-package duke;
+package duke.Command;
 
-public class ExitCommand extends Command{
+import duke.Command.Command;
+import duke.DukeException;
+import duke.Storage;
+import duke.TaskList;
+import duke.Ui;
+
+public class ExitCommand extends Command {
 
     @Override
     public void runCommand(TaskList taskList, Ui ui, Storage storage) throws DukeException {

src/main/java/duke/ListCommand.java → src/main/java/duke/Command/ListCommand.java

@@ -1,4 +1,10 @@
-package duke;
+package duke.Command;
+
+import duke.Command.Command;
+import duke.DukeException;
+import duke.Storage;
+import duke.TaskList;
+import duke.Ui;
 
 public class ListCommand extends Command {
 

src/main/java/duke/Duke.java

@@ -1,23 +1,6 @@
 package duke;
 
-import duke.task.Deadline;
-import duke.task.Event;
-import duke.task.Task;
-import duke.task.Todo;
-
-import java.io.FileNotFoundException;
-import java.io.File;
-import java.io.FileWriter;
-import java.nio.file.Files;
-
-import java.io.IOException;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-
-import java.time.format.DateTimeParseException;
-
-import java.util.ArrayList;
-import java.util.Scanner;
+import duke.Command.Command;
 
 public class Duke {
     private Storage storage;

src/main/java/duke/Parser.java

@@ -1,7 +1,6 @@
 package duke;
 
-import java.io.IOException;
-import java.util.Scanner;
+import duke.Command.*;
 
 public class Parser {
 

src/main/java/duke/TaskList.java

@@ -23,8 +23,12 @@ public int getSize() {
         return tasks.size();
     }
 
-    public Task getTask(int index) {
-        return tasks.get(index);
+    public Task getTask(int index) throws DukeException {
+        try {
+            return tasks.get(index);
+        } catch (IndexOutOfBoundsException e) {
+            throw new DukeException("Invalid Task. Please try again.");
+        }
     }
 
     public void addTask(Task task) {