java - 当用户选择停止时，如何打印用户的赢、输、平数

Question

此时，程序显示两种选择并打印一条语句，表明用户赢了、计算机赢了还是平局。继续玩直到用户选择停止，然后打印用户赢的次数，损失, 和关系.

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

public class RockPaperScissor {

    public static void main(String[] args) {

        final int MAX = 3;
        int randomNumber;
        int userChoice;
        int computerChoice;
        int choice;
        Scanner input = new Scanner(System.in);
        Random rand = new Random();//random number generated by computer

        String str, another = "y";

        Scanner scan = new Scanner(System.in);
        int rounds = 0;
        userChoice = 0;

            while (another.equalsIgnoreCase("y")) {// allows y or Y
                System.out.print("enter 1= rock 2= paper 3 = scissor(0 to quit):");
                rounds++;
                userChoice = input.nextInt();
                computerChoice = rand.nextInt(MAX) + 1;
                System.out.println("computer picked " + computerChoice);

                int lose = 0;
                int win = 0;
                int tie = 0;
                int computerScore = 0, userScore = 0;


                if (userChoice == 1 || userChoice == 2 || userChoice == 3) {
                    if (userChoice == computerChoice) {
                        System.out.println("Tie Game!");
                        System.out.println();
                        tie++;
                        //rounds++;
                    } else if (userChoice == 1) {

                        if (computerChoice == 2) {
                            //rock is covered by paper
                            System.out.println("  you lose");
                            lose++;
                            computerScore++;
                            //rounds++;
                        } else if (computerChoice == 3) {
                            //rock smashes scissors
                            System.out.println("  you win");
                            win++;
                            userScore++;
                            //rounds++;
                        }
                    } else if (userChoice == 2) {
                        if (computerChoice == 3) {
                            //paper is cut by scissors
                            System.out.println("  you lose");
                            lose++;
                            computerScore++;
                            //rounds++;
                        } else if (computerChoice == 1) {
                            //paper covers rock
                            System.out.println("  you win");
                            win++;
                            userScore++;
                            //rounds++;
                        }
                    } else if (userChoice == 3) {

                        if (computerChoice == 1) {
                            //scissors are smashed by rock
                            System.out.println("  you lose");
                            lose++;
                            computerScore++;
                            //rounds++;
                        } else if (computerChoice == 2) {
                            //scissors cut paper
                            System.out.println("  you win");
                            win++;
                            userScore++;
                            //rounds++;
                        }
                    }

                } else {
                    System.out.println("invalid number");
                }
                System.out.println();
                System.out.println("User wins: " + win + " User loses: " + lose + "User ties " + tie);
                System.out.print("Do you want to play again (y/n)? ");
                another = scan.nextLine();
            }
           }
}

Answer 1

通过下面的代码，

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

公共(public)类 RockPaperScissor {

 public static void main(String[] args) {

    final int MAX = 3;
    int randomNumber = 0;
    int userChoice = 0;
    int computerChoice = 0;
    int choice = 0;
    int rounds = 0;
    int lose = 0;
    int win = 0;
    int tie = 0;
    int computerScore = 0;
    int userScore = 0;
    Scanner input = new Scanner(System.in);
    Random rand = new Random();//random number generated by computer
    String str, another = "y";

    userChoice = 0;

    while (another.equalsIgnoreCase("y")) {// allows y or Y
        System.out.print("enter 1= rock 2= paper 3 = scissor(0 to quit):");
        rounds++;
        userChoice = Integer.parseInt(input.nextLine());

        if(userChoice == 0){
            System.out.print("Do you want to play again (y/n)? ");
            another = input.nextLine();
        } else if (userChoice > 0 && userChoice < 4){
            computerChoice = rand.nextInt(MAX) + 1;
            System.out.println("computer picked " + computerChoice);

            if (userChoice == computerChoice) {
                System.out.println("Tie Game!");
                System.out.println();
                tie++;
            } else if (userChoice == 1) {

                if (computerChoice == 2) {
                    //rock is covered by paper
                    System.out.println("  you lose");
                    lose++;
                    computerScore++;
                } else if (computerChoice == 3) {
                    //rock smashes scissors
                    System.out.println("  you win");
                    win++;
                    userScore++;
                }
            } else if (userChoice == 2) {
                if (computerChoice == 3) {
                    //paper is cut by scissors
                    System.out.println("  you lose");
                    lose++;
                    computerScore++;
                } else if (computerChoice == 1) {
                    //paper covers rock
                    System.out.println("  you win");
                    win++;
                    userScore++;
                }
            } else if (userChoice == 3) {

                if (computerChoice == 1) {
                    //scissors are smashed by rock
                    System.out.println("  you lose");
                    lose++;
                    computerScore++;
                } else if (computerChoice == 2) {
                    //scissors cut paper
                    System.out.println("  you win");
                    win++;
                    userScore++;
                }
            }
        }else{
            System.out.println("invalid number");
        }
        System.out.println("computer score: " + computerScore + " You Score: " + userScore + " Rounds: " + rounds+"\n");
    }
 }

我已经从您的原始代码中删除了扫描和一个 while 循环并定义了现有条件。

祝你好运!!!