update

src/main/java/BattleShip/GridGUI.java

@@ -3,6 +3,8 @@ package BattleShip;
 import javax.swing.*;
 import javax.swing.border.Border;
 import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
 import java.util.ArrayList;
 import java.util.Random;
 
@@ -70,4 +72,9 @@ public class GridGUI {
             }
         }
     }
+    public class MyCellListener implements ActionListener {
+        public void actionPerformed(ActionEvent a) {
+
+        }
+    }
 }