update

src/main/java/BattleShip/GridGUI.java

@@ -39,6 +39,25 @@ public class GridGUI extends JPanel {
         allShips.add(submarine);
         allShips.add(battleship);
         allShips.add(aircraftCarrier);
+
+        for(int i = 1; i < (rows * columns); i++) {
+            BSButton b = new BSButton();
+            b.setEnabled(false);
+            b.setGridLocation(i);
+            buttons.add(b);
+        }
+
+        setShipLocations();
+
+        GridLayout g = new GridLayout(rows,columns);
+        this.setLayout(g);
+
+        //Add listeners to all cells in grid to listen for guesses.
+
+        for (BSButton bsb : buttons) {
+            bsb.addActionListener(new MyCellListener());
+            this.add(bsb);
+        }
     }
     public void setShipLocations() {