Need help with running

[Javaman31]

I am running program through JGrasp and it compiles but the run stalls would someone mind telling me what is wrong?

import javax.swing.*;
   import java.awt.*;
   import java.awt.event.*;
   import java.util.*;
   import java.io.*;
   import java.util.Random;
   
    public class PennyPitch
   {
       public static void main(String[] args)
      {
         int score = 0;
         int played = 0;
         while(true){
            int rows = 0;
            int cols = 0;
            int sum = 0;
            int x = 0;
            int points = 0;
            int round = 0;
            int total = 0;
            int trials = 0;
            boolean replay = true;
            Random penny = new Random(); 
            String str = " ";
            Square2[][] table = new Square2[5][5];
            String board = " ";
         
            for(x =0; x < 5; x++){
               table[0][x] = new Square2(1);
               table[4][x] = new Square2(1);
               table[x][0] = new Square2(1);
               table[x][4] = new Square2(1);
            }
            for(x = 1; x < 4; x++){
               table[1][x] = new Square2(2);
               table[3][x] = new Square2(2);
               table[x][1] = new Square2(2);
               table[x][3] = new Square2(2);
            }
            table[2][2] = new Square2(3);
            for(int x2 = 0; x2 < table.length; x2++){
               for(int y2 = 0; y2 < table.length; y2++){
                  board += table[x2][y2] + "   ";
               }
               board += "\n";
            }
            while(replay  && round < 5)
            {
               int random = penny.nextInt(25) + 1;
               trials = penny.nextInt(25) + 1;
               rows = (trials - 1) / 5;
               cols = (trials - 1) % 5;
               str = "";
            }
         
            JOptionPane.showMessageDialog(null, "The Board:\n " + board);
            points += table[rows][cols].getPoints();
            table[rows][cols].setPennyLanded();
            round++;
            total++;
               
            for(int rows2 = 0; rows2 < table.length; rows2++)
            {
               for(int cols2 = 0; cols2 < table.length; cols2++)   
               {
                  str += table[rows2][cols2] + "   ";
               }
               str += "\n";
            }
            JOptionPane.showMessageDialog(null, "The Board: \t" + total + " out of 5 \n" + str);
         
            
            score += points;
            played++;
            JOptionPane.showMessageDialog(null,"Score for this round is " + points + " points");
            JOptionPane.showMessageDialog(null,"Total is " + score + " points");
           
            int option = JOptionPane.showConfirmDialog(null, "Are you done yet?", "Select Option", JOptionPane.YES_NO_OPTION);
            if (option == 0)
               break;
         
         }
         JOptionPane.showMessageDialog(null, "Total Status: " + score + " points, in " + played + " rounds.");
      
      
      }
   }

sorry for bad english...