Created Binding class which binds a hotkey with an action

src/model/Action.java

 package model;
 
 import java.awt.*;
-import java.awt.event.KeyEvent;
-import javax.swing.JFrame;
-
-public class Action implements InputEmulator{
 
+public class Action extends Hotkey implements InputEmulator{
     /**
-     * Robot to simulate button presses
+     * Robot which simulates user key presses
      */
     Robot robot;
 
     /**
-     * Constructor to create a new robot to control key presses
-     * @throws AWTException
+     * Constructs an immutable hotkey.
+     * @param keyCode  The virtual keycode of the hotkey.
+     * @param id       The unique ID of the hotkey.
+     * @param modifier The modifier of the hotkey.
      */
-    public Action() throws AWTException {
+    public Action(int keyCode, int id, Modifier modifier) throws AWTException {
+        super(keyCode, id, modifier);
         this.robot = new Robot();
+
     }
 
     /**
@@ -26,7 +27,9 @@ public class Action implements InputEmulator{
      */
     @Override
     public void sendKey(int keyCode, boolean release) {
-        robot.keyPress(keyCode);
-        robot.keyRelease(keyCode);
+        if (release) {
+            robot.keyPress(this.getKeyCode());
+            robot.keyRelease(this.getKeyCode());
+        }
     }
 }

src/model/Binding.java

+package model;
+
+public class Binding {
+    /**
+     * Hotkey to be bound to an action
+     */
+    Hotkey hotkey;
+
+    /**
+     * Action preformed when hotkey is pressed
+     */
+    Action action;
+
+    /**
+     * The id of the hotkey and action pairing
+     */
+    int id;
+
+    /**
+     * Constructor to bind the hotkey and the action together
+     * @param hotkey hotkey which is submitted
+     * @param action the action to be preformed when the hotkey is pressed
+     */
+    public Binding(Hotkey hotkey, Action action){
+        this.hotkey = hotkey;
+        this.action = action;
+        this.id = hotkey.getID();
+    }
+}