棋盘游戏错误意外识别？

Question

所以基本上我一直在几行代码中得到错误，是的，我在第31行错过了一个if条款我已经尝试了有和没有它并且它仍然不起作用，有人可以给我一只手弄清楚我设法搞砸了什么？

主要课程：

package simpleboardgame;

public class RealTile {

 public static void main(String[] args) {
   Tile newTile = new Tile();
 }

}

PACKAGE：

package simpleboardgame;

import java.awt.*;
import javax.swing.*;
import java.util.Random;

public class Tile extends JFrame{

  int rowMax = 10;
  int columnMax = 10;
  int row;
  int col;
  int n = 0;

 public Tile ()
 {
  JFrame frame = new JFrame();
  frame.setLayout(new GridLayout(rowMax, columnMax));
  frame.setSize(600,600);
  frame.setVisible(true);
  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  JLabel nextLabel = new JLabel();

  int[] activeCell = new int[100];

  for (int row = 0; row < rowMax; row++)
  {
   for (int col = 0; col < columnMax; col++);
   {

    {
     nextLabel.setBorder(BorderFactory.createLineBorder(//Color.BLUE ));
     nextLabel.setBackground(http://Color.black );
     nextLabel.setOpaque(true);

    }

  else 

    {
    nextLabel = new JLabel();
    }

   frame.getContentPane().add(nextLabel);

   }
  }

 }
}