Added functionality on button press for the first button

src/main/java/game/StartTicTacToeGame.java

@@ -149,7 +149,24 @@ public class StartTicTacToeGame implements ActionListener{
 
 	@Override
 	public void actionPerformed(ActionEvent e) {
-		// TODO Auto-generated method stub
+		if(e.getSource() == button) {
+			if(player1Turn) {
+				button.setForeground(Color.black);
+				button.setText("X");
+				button.setFont(new Font("arial", Font.PLAIN, 30));
+				player2Turn();
+				button.setEnabled(false);
+				player1buttonPressed = true;
+			}
+			else {
+				button.setForeground(Color.black);
+				button.setText("O");
+				button.setFont(new Font("arial", Font.PLAIN, 30));
+				button.setEnabled(false);
+				player1Turn();
+				player2buttonPressed = true;
+			}
+		}
 		
 	}	
 }