用JAVA制作简单的和电脑的石头剪刀布

import java.util.Scanner;

public class game_test1 {
    public static void main(String[] args) {
        String player_name;
        String com_name;
        int player_choice;
        int com_choice;
        String player_choice_name;
        String com_choice_name;
        System.out.println("**************************************");
        System.out.println("*********欢迎来到石头剪刀布游戏*********");
        System.out.println("**************************");
        System.out.print("欢迎进入本游戏,请输入玩家游戏名字:");
        Scanner scanner = new Scanner(System.in);
        player_name = scanner.nextLine();
        if (player_name.trim().equals("")){
            player_name = "匿名用户";
        }
        System.out.println("*************************************");
        System.out.println("请选择对战的电脑:");
        System.out.println("1------戴拿奥特曼");
        System.out.println("2------赛罗奥特曼");
        System.out.println("3------zero2");
        String com_no = scanner.nextLine();
        if (com_no.equals("1")){
            com_name = "戴拿奥特曼";
        } else if (com_no.equals("2")){
            com_name = "赛罗奥特曼";
        }else if (com_no.equals("3")){
            com_name = "zero2";
        } else {
            com_name = "匿名用户";
        }
        System.out.println("*************************************");
        System.out.println("请选择你要出的代号:");
        System.out.println("1--------石头");
        System.out.println("2--------剪刀");
        System.out.println("3--------布");
        String temp_choice = scanner.next();
        if (temp_choice.equals("1") || temp_choice.equals("2") || temp_choice.equals("3")){
            player_choice = Integer.parseInt(temp_choice);
        } else {
            player_choice = (int)Math.round(Math.random()*2+1);
        }
        if (player_choice == 1){
            player_choice_name = "石头";
        } else if (player_choice == 1){
            player_choice_name = "剪刀";
        } else {
            player_choice_name = "布";
        }

        com_choice = (int)Math.round(Math.random()*2+1);
        if (com_choice == 1){
            com_choice_name = "石头";
        } else if (com_choice == 1){
            com_choice_name = "剪刀";
        } else {
            com_choice_name = "布";
        }

        if (player_choice - com_choice == 1 || player_choice - com_choice == -2){
            System.out.println("玩家"+ player_name+"出："+player_choice_name+",赢");
            System.out.println("电脑"+com_name+"出:"+com_choice_name+",输");
        } else if (com_choice - player_choice == 1 || com_choice - player_choice == -2){
            System.out.println("电脑"+com_name+"出:"+com_choice_name+",赢");
            System.out.println("玩家"+ player_name+"出："+player_choice_name+",输");
        } else {
            System.out.println("玩家"+ player_name+"出："+player_choice_name+",平局");
            System.out.println("电脑"+com_name+"出:"+com_choice_name+",平局");
        }
    }
}