Could someone please fix my toString, saveToFile, and retrieveFile method so that they properly work. The saveToFile method should allow the user to save a game to the file directory with a name of their choice. Currently it only allows the user to access the file directlory and create a folder to store the game in but it does not save. The retrieveFromFile method does not work at all.This is not all the code but some of it$.$

public class TetrisGame

$\{$

private TetrisBrick fallingBrick;

private int rows $=2$;

private int cols $=2$;

private int numBrickTypes $=7$;

private Random randomGen;

private int$[][]$ background;

private int state;

private int score;

public String toString$()$

$\{$

String gameFile$=""$;

for$($int row$=0$; row