package com.farsight.session7;import java.util.Scanner;/** * 根據輸入的數字，判斷數組strs的值 然后進行邏輯判斷*/public class 猜拳 {  public static void main(String[] args) {    String[] strs = { "石頭", "剪刀", "布" };    Scanner sc = new Scanner(System.in);    System.out.println("請輸入您的選擇:(0.石頭 1.剪刀 2.布)");    int input = sc.nextInt();    String input_str = strs[input];    System.out.println("您輸入的是:" + input_str);    int ran = (int) (Math.random() * 3);    String sys_str = strs[ran];    System.out.println("系統輸出的是：" + sys_str);    if (input_str.equals(sys_str)) {      System.err.println("你們是平局");    } else if (input_str == "石頭" && sys_str == "剪刀" || input_str == "剪刀"        && sys_str == "布" || input_str == "布" && sys_str == "石頭") {      System.err.println("你贏了");    } else {      System.err.println("你輸了");    }  }}