Tic Tac Toe(main class with new features)

package tictactoefull;

import java.util.InputMismatchException;
import java.util.Random;
import java.util.Scanner;

public class TicTacToeFULL {


    public static void main(String[] args) {
        int index=0,win=0,choose=0;
        boolean done = false;
        do{
            try{
                System.out.println("For Single Player press 1");
                System.out.println("For Double Player press 2");
                System.out.print("Choice: ");
                Scanner input = new Scanner(System.in);
                choose = input.nextInt();
                if(choose==1 || choose==2){done = true;}
                else{
                    printProblem();
                }
            }catch(InputMismatchException e){
                printProblem();
            }
        }while(!done);
        done = false;
        Board board = new Board();
        Sign player1 = new Sign();
        if(choose == 2){
            Sign player2 = new Sign();
            do{
                System.out.print("Input 1st Player Name or Sign: ");
                player1.setSign();
                System.out.print("Input 2nd Player Name or Sign: ");
                player2.setSign();
                if(player1.getSign() == player2.getSign() || !player1.isDone() || !player2.isDone()){
                    System.out.println("Sign Clash or Invalid Sign !!!");
                }
            }while(player1.getSign() == player2.getSign() || !player1.isDone() || !player2.isDone());

            board.printBoard();
            for(int i=0; i<9; i++){
                if(board.cheakWin()){
                    if(cheakPlayer1(i)){
                        win = 1;
                        System.out.printf("%s Win the Game !!\n",player2.getPlayerName());
                    }
                    else{
                        win = 1;
                        System.out.printf("%s Win the Game !!\n",player1.getPlayerName());
                    }
                    break;
                }
                do{
                    if(cheakPlayer1(i)){
                        System.out.printf("%s set %c in the board...\n",
                            player1.getPlayerName(),player1.getSign());
                    }
                    else{
                        System.out.printf("%s set %c in the board...\n",
                            player2.getPlayerName(),player2.getSign());
                    }
                    do{
                        try{
                            System.out.print("Select [1 to 9]: ");
                            Scanner input = new Scanner(System.in);
                            index = input.nextInt();
                            done = true;
                        }catch(InputMismatchException e){
                            printProblem();
                        }
                    }while(!done);
                    done = false;

                }while(!board.testValidity(index));
                if(cheakPlayer1(i)){
                    board.setIndex(index, player1.getSign());
                }
                else{
                    board.setIndex(index, player2.getSign());
                }
                board.printBoard();
            }
            if(win==0 && !board.cheakWin() ){
                System.out.println();
                System.out.println("Game drow.... !!!");
            }
            else if (win != 1){
                System.out.printf("%s Win the Game !!\n",player1.getPlayerName());
            }
        }
        //play with computer
        else{
            char computerSign;
            int gameMode=0,attemp=0;
            System.out.println("Two Modes are available Easy & Hard");
            do{
            try{
                System.out.println("For Easy Mode press 1");
                System.out.println("For Hard Mode press 2");
                System.out.print("Game Mode: ");
                Scanner input = new Scanner(System.in);
                gameMode = input.nextInt();
                if(gameMode==1 || gameMode==2){done = true;}
                else{
                    printProblem();
                }
            }catch(InputMismatchException e){
                printProblem();
            }
        }while(!done);
        done = false;

            do{
                System.out.print("Input Your Name or Sign: ");
                player1.setSign();
                if(!player1.isDone()){
                    System.out.println("Invalid Sign !!!");
                }
            }while(!player1.isDone());
            //setting computer's sign
            if(player1.getSign() == 'X'){
                computerSign = 'O';
            }
            else{
                computerSign = 'X';
            }
            System.out.println("Computer will play with sign: "+ computerSign);
            board.printBoard();
            for(int i=0; i<9; i++){
                if(board.cheakWin()){
                    if(cheakPlayer1(i)){
                        win = 1;
                        System.out.println("Computer win... !!!");
                    }
                    else{
                        win = 1;
                        System.out.println("You win the Game... !!!");
                    }
                    break;
                }
                if(cheakPlayer1(i)){
                    System.out.println("Place " + player1.getSign() + " in the Board");
                    do{
                        do{
                            try{
                                System.out.print("Select [1 to 9]: ");
                                Scanner input = new Scanner(System.in);
                                index = input.nextInt();
                                done = true;
                            }catch(InputMismatchException e){
                                printProblem();
                            }
                        }while(!done);
                        done = false;
                        if(!board.testValidity(index)){
                            printProblem();
                        }
                    }while(!board.testValidity(index));
                    board.setIndex(index, player1.getSign());
                }
                else{
                    //computers turn calculation
                    System.out.println("Computer's Turn...");
                    Random generator = new Random();
                    do{
                        if(gameMode == 2 && attemp==0){
                            index = board.setTarget(player1.getSign(),computerSign);
                            attemp++;
                        }
                        else{
                            index = generator.nextInt(10);
                        }
                    }while(!board.testValidity(index));
                    attemp =0;
                    System.out.println("Computer choose Index: "+index);
                    board.setIndex(index, computerSign);
                }
                board.printBoard();
            }
            if(win==0 && !board.cheakWin() ){
                System.out.println();
                System.out.println("Game drow.... !!!");
            }
            else if (win != 1){
                System.out.printf("Congratulation You Win the Game... !!");
            }

        }

    }

    public static boolean cheakPlayer1 (int n){
        if(n==0 || n==2 || n==4 || n==6 || n==8){
            return true;
        }
        return false;
    }
    public static void printProblem(){
        System.out.println("Wrong Input...!!!");
        System.out.println("Input Again...!!!");
    }


}