问如何在用户输入错误后循环特定区域的代码？(Java)

EN

import java.util.*;

public class Rock_Paper_Scissors
{
    public static void main( String arg[] )
    {
        Rock_Paper_Scissors game = new Rock_Paper_Scissors();
        game.startLogic();
    }

    private Random  rand;
    private Scanner inputScanner;
    private boolean loopGameStart;

    private int humanWinCount;
    private int computerWinCount;

    public Rock_Paper_Scissors()
    {
        this.rand          = new Random();
        this.inputScanner  = new Scanner( System.in );
        this.loopGameStart = true;

        humanWinCount    = 0;
        computerWinCount = 0;
    }

    public void startLogic()
    {
        System.out.print( "Welcome to Rock Paper Scissors, a game programmed by Daniel Park. " );
        this.askUntilGetAnAnswer( "N" );
    }

    private int humanWinCount()
    {
        int x = 0;
        return x;
    }

    private int computerWinCount()
    {
        int c = 0;
        return c;
    }

    private void askUntilGetAnAnswer( String determination )
    {
        while( this.loopGameStart )
        {
            if( !determination.equals( "Y" ) )
            {
                System.out.println( "\nWould you like to start? (Y/N)" );
                determination = this.inputScanner.next();
            }

            if( determination.equals( "N" ) )
            {
                System.out.println( "Please, do reconsider..." );
                this.loopGameStart = false;
            }
            else if( determination.equals( "Y" ) )
            {
                this.processCoreGameLogic();
            }
            else
            {
                System.out.print( "I do not understand, please try again!" );
            }
        }
    }

    private void processCoreGameLogic()
    {
        int choiceRPS;
        System.out.println( "Choose 0, 1, or 2 (Rock/Paper/Scissor)" );

        // 1 = Rock, 2 = Paper, 3= Scissor
        this.humanWinCount    = this.humanWinCount();
        this.computerWinCount = this.computerWinCount();

        while( ( this.humanWinCount < 5 ) && ( this.computerWinCount < 5 ) )
        {
            try
            {
                choiceRPS = inputScanner.nextInt();

                if( choiceRPS >= 0 && choiceRPS <= 2 )
                {
                    this.playing( choiceRPS );
                }
            }
            catch( InputMismatchException e )
            {
                System.out.print( "I do not understand, please try again!" );
                inputScanner.next();
            } 

        }

        this.endGame();
    }

    private void endGame()
    {
        String contOrNot = "";

        if( this.humanWinCount == 5 )
        {
            System.out.println( "\nCongratulations, you win!!" );
            System.out.println( "Computer: " + this.computerWinCount + " rounds won" );
            System.out.println( "You: " + this.humanWinCount + " rounds won" );
            System.out.println( "Would you like to try again? (Y/N)" );

            contOrNot = this.inputScanner.next();
        }

        if( this.computerWinCount == 5 )
        {
            System.out.println( "\nBoohoo, you lost!!" );
            System.out.println( "Computer: " + this.computerWinCount + " rounds won" );
            System.out.println( "You: " + this.humanWinCount + " rounds won" );
            System.out.println( "Would you like to try again? (Y/N)" );

            contOrNot = this.inputScanner.next();
        }

        if( contOrNot.equals( "N" ) )
        {
            System.out.println( "Okay, goodbye!!" );
            this.loopGameStart = false;
        }
        else
        {
            askUntilGetAnAnswer( contOrNot );
        }
    }

    private void playing( int choiceRPS )
    {
        int randomInteger = this.rand.nextInt( 3 ) + 1;

        // choiceRPS 0 -> tie  1, loss 2, win  3
        // choiceRPS 1 -> win  3, tie  1, loss 2
        // choiceRPS 2 -> loss 2, win  3, tie  1
        //
        switch( choiceRPS*3 + randomInteger )
        {
            case 1:
            case 5:
            case 9:
            {
                show_tie();
                break;
            }
            case 2:
            case 6:
            case 7:
            {
                show_loss();
                break;
            }
            case 3:
            case 4:
            case 8:
            {
                show_win();
                break;
            }
            default:
            {
                System.out.println( "    I do not understand... Try again." );
                System.out.println( "    Choose 0, 1, or 2 again (Rock/Paper/Scissor)" );
                System.out.println( "    Computer: " + this.computerWinCount + " rounds won" );
                System.out.println( "    You: " + this.humanWinCount + " rounds won" );
            }
        }
    }

    private void show_loss()
    {
        System.out.println( "LOSS" );
        System.out.println( "Choose 0, 1, or 2 again (Rock/Paper/Scissor)" );
        this.computerWinCount = this.computerWinCount + 1;
        System.out.println( "Computer: " + this.computerWinCount + " rounds won" );
        System.out.println( "You: " + this.humanWinCount + " rounds won" );
    }

    private void show_win()
    {
        System.out.println( "WIN!!" );
        System.out.println( "Choose 0, 1, or 2 again (Rock/Paper/Scissor)" );
        this.humanWinCount = this.humanWinCount + 1;
        System.out.println( "Computer: " + this.computerWinCount + " rounds won" );
        System.out.println( "You: " + this.humanWinCount + " rounds won" );
    }

    private void show_tie()
    {
        System.out.println( "TIE!!" );
        System.out.println( "Choose 0, 1, or 2 again (Rock/Paper/Scissor)" );
        System.out.println( "Computer: " + this.computerWinCount + " rounds won" );
        System.out.println( "You: " + this.humanWinCount + " rounds won" );
    }
}

int choiceRPS;
 do{
    choiceRPS = userRPS.nextInt();
}while(choiceRPS<0||choiceRPS>2);

public class Rock_Paper_Scissors {

    public static void main(String arg[]) {
        boolean loopGameStart = true;
        while (loopGameStart) {
            System.out.println(
                    "Welcome to Rock Paper Scissors, a game programmed by Daniel Park. Would you like to start? (Y/N)");
            Scanner userInput = new Scanner(System.in);
            String determination = userInput.next();

            switch (determination) {
                case "N":
                    System.out.println("Please, do reconsider...");
                    loopGameStart = true; // you might not want the player to be trapped here, so change it to `false` rather
                    break;
                case "Y":
                    /** 0 = Rock, 1 = Paper, 2 = Scissor */
                    int humanWinCount = 0;
                    int computerWinCount = 0;

                    System.out.println("Choose 0, 1, or 2 (Rock/Paper/Scissor)");
                    Scanner userRPS = new Scanner(System.in);
                    int userChoice = userRPS.nextInt();

                    while ((humanWinCount < 5) && (computerWinCount < 5)) { // either of them reaches 5
                        int computerChoice = new Random().nextInt(3); // this is fun, no more static computer choice
                        if (userChoice == computerChoice) { // break quick if its a tie
                            System.out.println("TIE!!");
                            displayStats(computerWinCount, humanWinCount);
                            askChoice();
                        } else {
                            switch (userChoice) { //based on userChoice and computerChoice combination
                                case 0:
                                    if (computerChoice == 1) {
                                        System.out.println("LOSS!!");
                                        displayStats(computerWinCount++,
                                                humanWinCount); // incrementing the computerCount as well
                                        askChoice();
                                    } else if (computerChoice == 2) {
                                        System.out.println("WIN!!");
                                        displayStats(computerWinCount,
                                                humanWinCount++); // incrementing the humanCount as well
                                        askChoice();
                                    }
                                    break;
                                case 1:
                                    if (computerChoice == 0) {
                                        System.out.println("WIN!!");
                                        displayStats(computerWinCount, humanWinCount++);
                                        askChoice();
                                    } else if (computerChoice == 2) {
                                        System.out.println("LOSS!!");
                                        displayStats(computerWinCount++, humanWinCount);
                                        askChoice();
                                    }
                                    break;
                                case 2:
                                    if (computerChoice == 0) {
                                        System.out.println("LOSS");
                                        displayStats(computerWinCount++, humanWinCount);
                                        askChoice();
                                    } else if (computerChoice == 1) {
                                        System.out.println("WIN!!");
                                        displayStats(computerWinCount, humanWinCount++);
                                        askChoice();
                                    }
                                    break;
                                default:
                                    System.out.println("I do not understand... Try again.");
                                    displayStats(computerWinCount, humanWinCount);
                                    askChoice();
                                    break;

                            }
                        }

                        userChoice = userRPS.nextInt(); //next iteration input only required once
                    }

                    if (humanWinCount == 5) {
                        System.out.println("Congratulations, you win!!");
                    } else {
                        System.out.println("Boohoo, you lost!!");
                    }
                    displayStats(computerWinCount, humanWinCount);
                    System.out.println("Would you like to try again? (Y/N)");
                    Scanner continueOrNot = new Scanner(System.in);
                    String contOrNot = continueOrNot.next();
                    if (contOrNot.equals("Y")) {
                        loopGameStart = true;
                    } else if (contOrNot.equals("N")) {
                        System.out.println("Okay, goodbye!!");
                        loopGameStart = false;
                    }
                    break;


                default:
                    System.out.println("I do not understand, please try again!");
                    break;
            }
        }
    }

    private static void askChoice() {
        System.out.println("Choose 0, 1, or 2 again (Rock/Paper/Scissor)");
    }

    private static void displayStats(int computerWinCount, int humanWinCount) {
        System.out.println("Computer: " + computerWinCount + " rounds won");
        System.out.println("You: " + humanWinCount + " rounds won");
    }
}