Unnamed

import java.io.*;import javax.swing.*;import java.awt.*;public class Sudoku {		public JFrame sudokuGui = new JFrame();	public JButton[][] squares;			public void createGui() {	   squares = new JButton[4][4];	   squares[1][1].setText("1");	   squares[1][3].setText("3");	   squares[2][3].setText("4");	   squares[4][2].setText("2");	   	   sudokuGui.setTitle("Sudokuuuuuu");	   sudokuGui.setSize(400,400);	   sudokuGui.setVisible(true);	   sudokuGui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);	   	   sudokuGui.setLayout(new GridLayout(3,3)); 	  for(int i=0; i<4; ++i) {		   for(int j=0; j<4; ++j){			   sudokuGui.add(squares[i][j]);		   }		 }	   	}		public Sudoku() {		createGui();	}		public static void main(String[] args) {      Sudoku test = new Sudoku();	}}