What does the final, completed code of this class look like? It is used to compile ConnectFourCLI.java and ConnectFourTester.java

package cs$1302.$game;

import cs$1302.$gameutil.GamePhase;

import cs$1302.$gameutil.Token;

import cs$1302.$gameutil.TokenGrid;

$/**$

$*\{$@code ConnectFour$\}$ represents a two$-$player connection game involving a two$-$dimensional grid of

$*\{$@linkplain cs$1302.$gameutil.Token tokens$\}.$ When a $\{$@code ConnectFour$\}$ game object is

$*$ constructed, several instance variables representing the game's state are initialized and

$*$ subsequently accessible, either directly or indirectly, via "getter" methods. Over time, the

$*$ values assigned to these instance variables should change so that they always reflect the

$*$ latest information about the state of the game. Most of these changes are described in the

$*$ project's

$*$ functional requirements.

$*/$

public class ConnectFour $\{$

$//----------------------------------------------------------------------------------------------$

$//$ INSTANCE VARIABLES: You should NOT modify the instance variable declarations below.

$//$ You should also NOT add any additional instance variables. Static variables should

$//$ also NOT be added.

$//----------------------------------------------------------------------------------------------$

private int rows; $//$ number of grid rows

private int cols; $//$ number of grid columns

private Token$[][]$ grid; $//2$D array of tokens in the grid

private Token$[]$ player; $//1$D array of player tokens $($length $2)$

private int numDropped; $//$ number of tokens dropped so far

private int lastDropRow; $//$ row index of the most recent drop

private int lastDropCol; $//$ column index of the most recent drop

private GamePhase phase; $//$ current game phase

$//----------------------------------------------------------------------------------------------$

$//$ CONSTRUCTOR

$//----------------------------------------------------------------------------------------------$

$/**$

$*$ Constructs a $\{$@link cs$1302.$game.ConnectFour$\}$ game with a grid that has $\{$@code rows$\}-$many

$*$ rows and $\{$@code cols$\}-$many columns. All of the game's instance variables are expected to

$*$ be initialized by this constructor as described in the project's

$*$ functional

$*$ requirements.

$*$

$*$ @param rows the number of grid rows

$*$ @param cols the number of grid columns

$*$ @throws IllegalArgumentException if the value supplied for $\{$@code rows$\}$ or $\{$@code cols$\}$ is

$*$ not supported. The following values are supported: $\{$@code $6<=$ rows $<=9\}$ and

$*\{$@code $7<=$ cols $<=9\}.$

$*/$

public ConnectFour$($int rows, int cols$)\{$

$//$

$//$ replace the entire contents of this constructor with your implementation

$//$

$//$throw new UnsupportedOperationException$("$constructor: not yet implemented."$)$;

$\}//$ ConnectFour

$//----------------------------------------------------------------------------------------------$

$//$ INSTANCE METHODS

$//----------------------------------------------------------------------------------------------$

$/**$

$*$ Return the number of rows in the game's grid.

$*$

$*$ @return the number of rows

$*/$

public int getRows$()\{$

$//$

$//$ replace the entire contents of this method with your implementation

$//$

throw new UnsupportedOperationException$("$getRows: not yet implemented."$)$;

$\}//$ getRows

$/**$

$*$ Return the number of columns in the game's grid.

$*$

$*$ @return the number of columns

$*/$

public int getCols$()\{$

$//$

$//$ replace the entire contents of this method with your implementation

$//$

throw new UnsupportedOperationException$("$getCols: not yet implemented."$)$;

$\}//$ getCols

$/**$

$*$ Return whether $\{$@code row$\}$ and $\{$@code col$\}$ specify a location inside this game's grid.

$*$

$*$ @param row the position's row index

$*$ @param col the positions's column index

$*$ @return $\{$@code true$\}$ if $\{$@code row$\}$ and $\{$@code col$\}$ specify a location inside this game's

$*$ grid and $\{$@code false$\}$ otherwise

$*/$

public boolean isInBounds$($int row, int col$)\{$

$//$

$//$ replace the entire contents of this method with your implementation

$//$

throw new UnsupportedOperationException$("$isInBounds: not yet implemented."$)$;

$\}//$ isInBounds

$/**$

$*$ Return the grid $\{$@linkplain cs$1302.$gameutil.Token token$\}$ located at the specified position

$*$ or $\{$@code null$\}$ if no token has been dropped into that position.

$*$

$*$ @param row the token's row index

$*$ @param col the token's column index

$*$ @return the grid token lo