字符串变量可能尚未初始化（错误指向第 34 行）

我一直在尝试让字符串初始化，但无济于事。我已经尝试了我遇到的所有解决方案，我不确定是因为我的无能还是因为我需要一个新的解决方案，我已经解决了程序的逻辑，所以我只需要帮助尝试初始化字符串值。如果有人可以提供帮助，我将不胜感激！

P.S 诅咒我想要挑战并使用环。 -_-

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

public class RockPaperScissors
{
public static void main (String[] args)
{
    String player, computer;
    int answer;
    Scanner scan = new Scanner (System.in);

    Random generator = new Random();
    answer = generator.nextInt(3) + 1;

    if (answer < 1 || answer > 3)
            answer = generator.nextInt(3) + 1;

    if (answer == 1)
        computer = "rock";
    if (answer == 2)
        computer = "paper";
    if (answer == 3)
        computer = "scissors";

    System.out.println ("Please choose rock, paper, or scissors.");
    player = scan.nextLine();

    if (!player.equalsIgnoreCase("rock") || !player.equalsIgnoreCase("paper") 
            || !player.equalsIgnoreCase("scissors"))
    {
        System.out.println ("Please correctly enter one of the three 
                    choices: rock, paper, and scissors.");
        player = scan.nextLine();
    }

    if (player.compareTo(computer) == 0)
        System.out.println ("It's a draw!  You both chose " + player + 
                    "!");

    if ((computer.equalsIgnoreCase("rock") &&  
            player.equalsIgnoreCase("scissors")) && 
            (computer.equalsIgnoreCase("scissors") && player.equalsIgnoreCase("paper")) 
            && (computer.equalsIgnoreCase("paper") && player.equalsIgnoreCase("rock")))
        System.out.println ("You lost!  The computer chose " + computer + " 
                    and you chose " + player + ".");

    if ((player.equalsIgnoreCase("rock") &&  
            computer.equalsIgnoreCase("scissors")) && 
            (player.equalsIgnoreCase("scissors") && 
            computer.equalsIgnoreCase("paper")) && 
            (player.equalsIgnoreCase("paper") &&     
            computer.equalsIgnoreCase("rock")))
            System.out.println ("You won!  CONGRATULATIONS!  The computer chose             
                    " + computer + " and you chose " + player + ".");

}

}

String computer; // not initialized

将此更改为

String computer = null;  or ""// initialized
if (player.compareTo(computer) == 0)

因为，变量计算机会根据条件进行分配。如果您提到的上述条件不满足。该值为 none，因此仅显示错误。