Question

Need to Rewrite this Java program into Object Oriented:

Answer 1

package madness;

import java.util.Scanner;

public class TicTacToe {
// create a user defined class
private char t[][]; // create all instance variables
private String p1,p2;
private boolean boxCheck=true;
private int ctr=1;

public TicTacToe( int dim, String n1, String n2){
t=new char[dim][dim]; // allows for boards of dim rows and dim cols
p1=n1;
p2=n2;
start();
}
public void start(){
printBoard();
enterValue(ctr);

}




//precondition: ttt board instantiated as md array

//postcondition: ttt board is reset and ready for new game

public void resetBoard(){



for (int r = 1; r<=3; r++)

{



for (int c = 1; c<=3; c++){



t[r][c]=0;

}}

}



//precondition: ttt board instantiated as md array

//postcondition: ttt board printed in console

public void printBoard(){



System.out.println("******Tic Tac Toe Board******");



System.out.println(" 1 2 3");

int f=1;

for (int r = 1; r<=3; r++)

{



for (int c = 1; c<=3; c++)

{

if (c==1)

{System.out.print(" " +f +" |"); f++;}



System.out.print(t[r][c]);

System.out.print("|");

if (c==3)

{System.out.println();

System.out.println(" -------");}



}



}}





//precondition: ttt board instantiated as md array, n defined as odd or even (1-9)

//postcondition: user input added to array t[][].

public void enterValue( int n){



System.out.println("Enter row, column, value. Ex: 11 or 12 or 33");





do

{

if (n==1 || n==3 || n==5 || n==7 || n==9)



{

System.out.println("Player 1 Entry:");

Scanner keyboard = new Scanner(System.in);

String tictac_input = keyboard.nextLine();



//for row

String tt_inputR=tictac_input.substring(0, 1);

int inputR = Integer.parseInt(tt_inputR);



//for column

String tt_inputC=tictac_input.substring(1, 2);

int inputC = Integer.parseInt(tt_inputC);



//checks the value of t[r][c] to ensure that it is not already filled.

boxCheck(inputR,inputC);



if (boxCheck==true)

{


t[inputR][inputC] = 'X';//to fill box:

}



}

}

while (boxCheck==false); //loop repeats if user enters a value equal to a previous entry.





do

{

if (n==2 || n==4 || n==6 || n==8)



{

System.out.println("Player 2 Entry:");

Scanner keyboard = new Scanner(System.in);

String tictac_input = keyboard.nextLine();



//for row

String tt_inputR=tictac_input.substring(0, 1);

int inputR = Integer.parseInt(tt_inputR);



//for column

String tt_inputC=tictac_input.substring(1, 2);

int inputC = Integer.parseInt(tt_inputC);



//checks the value of t[r][c] to ensure that it is not already filled.

boxCheck( inputR,inputC);



if (boxCheck==true) //only sets value of t[r][c] if boxCheck is valid

{


t[inputR][inputC] = 'O';//to fill box:

}



}

}

while (boxCheck==false);//loop repeats if user enters a value equal to a previous entry.



}





//precondition: ttt board instantiated as md array, r and c of user input defined

//postcondition: will return boxCheck as t/f, allowing program to decide whether box already filled.

public void boxCheck( int r, int c){



if (t[r][c]!=0)

{System.out.println("This box is already filled. Try entering a value for another box.");

boxCheck = false;}



if (t[r][c]==0)

{boxCheck = true;}

}







//precondition: ttt board instantiated as md array, 3x's or 3o's entered into md array and appear consecutively

//postcondition: will decide if game is over and who is winner

public static boolean checkWinner(char t[][]){



if (t[1][1]=='X' && t[1][2]=='X' && t[1][3]=='X')



{

System.out.println("Player 1 Wins!!!!.");

return true;

}



if (t[1][1]=='O' && t[1][2]=='O' && t[1][3]=='O')



{

System.out.println("Player 2 Wins!!!!.");

return true;

}



if (t[2][1]=='X' && t[2][2]=='X' && t[2][3]=='X')



{

System.out.println("Player 1 Wins!!!!.");

return true;

}



if (t[2][1]=='O' && t[2][2]=='O' && t[2][3]=='O')



{

System.out.println("Player 2 Wins!!!!.");

return true;

}



if (t[3][1]=='O' && t[3][2]=='O' && t[3][3]=='O')



{

System.out.println("Player 2 Wins!!!!.");

return true;

}



if (t[3][1]=='X' && t[3][2]=='X' && t[3][3]=='X')



{

System.out.println("Player 1 Wins!!!!.");

return true;

}



if (t[1][1]=='X' && t[2][2]=='X' && t[3][3]=='X')



{

System.out.println("Player 1 Wins!!!!.");

return true;

}



if (t[1][1]=='O' && t[2][2]=='O' && t[3][3]=='O')



{

System.out.println("Player 2 Wins!!!!.");

return true;

}



if (t[1][3]=='O' && t[2][2]=='O' && t[3][1]=='O')



{

System.out.println("Player 2 Wins!!!!.");

return true;

}



if (t[1][3]=='X' && t[2][2]=='X' && t[3][1]=='X')



{

System.out.println("Player 1 Wins!!!!.");

return true;

}



if (t[1][1]=='X' && t[2][1]=='X' && t[3][1]=='X')



{

System.out.println("Player 1 Wins!!!!.");

return true;

}



if (t[1][3]=='O' && t[2][3]=='O' && t[3][3]=='O')



{

System.out.println("Player 2 Wins!!!!.");

return true;

}



if (t[1][3]=='X' && t[2][3]=='X' && t[3][3]=='X')



{

System.out.println("Player 1 Wins!!!!.");

return true;

}



if (t[1][2]=='X' && t[2][2]=='X' && t[3][2]=='X')



{

System.out.println("Player 1 Wins!!!!.");

return true;

}



if (t[1][2]=='O' && t[2][2]=='O' && t[3][2]=='O')



{

System.out.println("Player 2 Wins!!!!.");

return true;

}







else

return false;







}










public static void main(String[] args) {

// TODO Auto-generated method stub



TicTacToe tic=new TicTacToe(3,"John", "Joan");





int want2play = 1; //declares value which later checks whether players want to play again



do

{

TicTacToe.resetBoard(tic);

TicTacToe.printBoard(); //prints board

for (int n=1; n<=10; n++)

{

if (n<=9) //only allows 9 turns

{

TicTacToe.enterValue(tic, n);

TicTacToe.printBoard(tic);

if (TicTacToe.checkWinner(tic)==true)

{break;}

}



else //this is effectively the 10th turn. this was made in case nobody wins.

System.out.println("Nobody Won! Wow, that's pathetic. LOL!!!");

}



System.out.println("Would you like to play again? Press 1 for Yes; 2 for No.");

Scanner keyboard = new Scanner(System.in);

want2play = keyboard.nextInt();



if (want2play == 2)

{break;}

}



while (want2play == 1);//if user wants to play again, this will be true; otherwise, it will be false.



System.out.println("************End of Game************");





}





}

Answer 2

the object is almost completed but can't print out the output :(