將數字輸出和輸入轉換爲字

Question

我有一個快速的問題，所以我完成了我的程序，這是一個簡單的岩石，剪刀遊戲，但目前它只顯示0,1,2其中0是剪刀，1是岩石，2是紙。我所面臨的問題是，我不太清楚如何給用戶提供輸入，以及計算機輸出從顯示數字到顯示剪刀，搖滾，紙張等。

import java.util.Scanner; 
import java.lang.Math; 

public class Lab3 
{ 
    public static void main(String[] args) 
    { 

     Scanner in = new Scanner(System.in); 

     System.out.print("Hello user! lets play "); 
     System.out.println("Rock, Paper, Scissors."); 
     System.out.println(); 
     System.out.print("Type in 0 for Scissors, 1 for Rock, or 2 for Paper "); 
     int userInput = in.nextInt(); 

     int opponentsHand = (int)(Math.random()*3); 




     if (userInput == opponentsHand) 
     { 

     System.out.print("Darth Vader has played " + opponentsHand); 
     System.out.println(" Despite your efforts of playing " + userInput + ", this battle has  ended in a draw!"); 
    } 

    if (userInput < opponentsHand && opponentsHand != 2) 
    { 
     System.out.print("Darth vader has played "+ opponentsHand); 
     System.out.println(", You played " + userInput + "You have Lost"); 
    } 

    else if (userInput < opponentsHand && opponentsHand == 2) 
    { 
     System.out.print("Darth Vader has played " + opponentsHand); 
     System.out.println(" You played " + userInput + " You have won"); 
    } 

    if (userInput > opponentsHand && opponentsHand != 0) 
    { 
     System.out.print("Darth Vader has played " + opponentsHand); 
     System.out.println(" You have played " + userInput + " You have won"); 
    } 

    else if (userInput > opponentsHand && opponentsHand == 0) 
    { 
     System.out.print("Darth Vader has played " + opponentsHand); 
     System.out.println(" You have played " + userInput + " You have lost"); 
    } 




} 

}

謝謝

Answer 1

一種方法就是使用一個數組來存儲手的名字：

String[] hands = {"scissors", "rock", "paper"}; 

打印時，請執行以下操作：

System.out.print("Darth Vader has played " + hands[opponentsHand]);