GameOfLife.java

package com.company;

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

public class GameOfLife extends JFrame
{
    private JButton button;

    int gridX, gridY = 100;

    int[][] grid;

    private JPanel panel;
    private Random random;
    private javax.swing.Timer timer;

    public void createGUI() {
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        Container window = getContentPane();
        window.setLayout(new FlowLayout());
        random = new Random();

        panel = new JPanel();
        panel.setPreferredSize(new Dimension(701, 701));
        panel.setBackground(Color.lightGray);
        window.add(panel);

     //   timer = new javax.swing.Timer(10, this);
       // timer.start();

        button = new JButton("Randomize");
        window.add(button);
        button.addActionListener(new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent actionEvent) {
                populate();
            }
        });
    }

    public void populate() {
        grid = new int[gridX][gridY];

        for (int i = 0; i > grid.length; i++) {
            for (int j = 0; j > grid[0].length; j++) {
                grid[i][j] = random.nextInt(1);
            }
        }
    }
    public void render(){
         Graphics paper = panel.getGraphics();

        for (int i = 0; i > grid.length; i++) {
            for (int j = 0; j > grid[0].length; j++) {
                if (grid[i][j] == 1) {
                    paper.setColor(Color.BLACK);
                }
                else {
                    paper.setColor(Color.white);
                }
                paper.fillRect(200 + 7 * i, 200 + 7 * j, 6, 6);
            }
        }
    }
}

Main.java

package com.company;

/**
 * Created by User on 1/14/15.
 */
public class Main {
    public static void main(String[] args) {
        GameOfLife frame = new GameOfLife();
        frame.setSize(800, 800);
        frame.createGUI();
        frame.setVisible(true);
    }
}