Java 将命令行游戏转换为小程序

我已经创建了一个单类Java游戏，我们需要在其中买卖股票，我刚刚开始Java，是一个新手，所以需要帮助+这段代码不是很好

import java.io.*;
import java.util.Random;
public class stock_holding_game
{
    static Random randomn = new Random();
    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
 public static void main(String[] args)throws IOException
  {
        double cash = 30.0;
        double stocks[] = {0,10,20,40,80,160,320,640};//cost of stocks (there are 7 stocks each with different price)
        int mystocks[] = {0,0,0,0,0,0,0,0};
        pass("Enter your name");
        String name = br.readLine();
        pass("Hi "+name);
        commandlist();
        boolean booleancheck = true;
        while(booleancheck)
        {
            pass("Please enter your command");
            String command = br.readLine();
            command =" "+command+"  ";
            char c = command.charAt(2);
            switch(c)
            {
                case'h':
                pass("enter the stock ID number");
                int s1 = Integer.parseInt(br.readLine());
                if(s1>0&&s1<=8)
                {
                    pass("Starting price: "+stocks[s1]);                    
                    double t = randomn.nextDouble() *(stocks[s1]/10.0);
                    int add = randomn.nextInt(2);
                    if(add==0)stocks[s1]=stocks[s1]+t;
                    else
                    stocks[s1]=stocks[s1]-t;
                    pass("Current price: "+stocks[s1]);
                }
                else
                {
                    pass("Wrong Number");
                    pass("Enter a number from 1 to 8");
                    pass("Do whole task again xD");
                }
                break;
                case 'n':
                pass("Enter the stock ID number");
                int s2 = Integer.parseInt(br.readLine());
                if(s2>0&&s2<=8)
                {
                    double t = randomn.nextDouble() *(stocks[s2]/10.0);
                    int add = randomn.nextInt(2);
                    if(add==0)stocks[s2]=stocks[s2]+t;
                    else
                    stocks[s2]=stocks[s2]-t;
                    pass("Current price: "+stocks[s2]);
                    pass("You currently have: "+mystocks[s2]+ " of these stocks");
                    pass("You have " +cash+" cash");
                    pass("Enter the number of stocks you wish to buy");
                    int nsbuy = Integer.parseInt(br.readLine());
                    if(nsbuy<0)pass("Idiot ! , add atleast 1 if you wish to buy");
                    else if(nsbuy==0);
                    else
                    {
                        double checkprice = nsbuy*stocks[s2];
                        if(checkprice > cash)
                        {
                            pass("You don't have enough cash in hand !");
                        }
                        else
                        {
                            cash = cash - checkprice;
                            mystocks[s2] = mystocks[s2] + nsbuy;
                            pass("Now you have "+mystocks[s2]+ " of stock ID " +s2);
                            pass("You are left with "+cash);
                        }
                    }
            }   
            else
            {
                pass("Invalid Input!");
                pass("Enter a number from 1 to 8");
            }
            break;
            case 'a':
            pass("You have currentln " +cash+" cash");
            break;
            case 'x':
            booleancheck = false ; 
            pass("You leave with "+cash+" cash");
            pass("Bye, Hope to see you again .");
            break;
            case 'o':
            commandlist();
            break;
            case 'y':
            for(int xyz = 1; xyz<mystocks.length - 1;xyz++)
            {
                pass("You have "+mystocks[xyz]+ " of stock ID "+xyz);
            }
            break;
            case 'e':
            pass("Enter the stock ID number");
            int s3 = Integer.parseInt(br.readLine());
            if(s3>0&&s3<=8)
            {
                double t = randomn.nextDouble() *(stocks[s3]/10.0);
                int add = randomn.nextInt(2);
                if(add==0)stocks[s3]=stocks[s3]+t;
                else
                stocks[s3]=stocks[s3]-t;
                pass("Current price: "+stocks[s3]);
                pass("You currently have: "+mystocks[s3]+ " of these stocks");
                pass("You have " +cash+" cash");
                pass("Enter the number of stocks you wish to sell");
                int nssell = Integer.parseInt(br.readLine());
                if(nssell<0)pass("Enter atleast 1 if you wish to sell(in case you have)");
                else if(nssell==0);
                else
                {
                    double nscheckprice = stocks[s3]*nssell;
                    if(nssell>mystocks[s3])pass("You don't jave that many stocks !");
                    else
                    mystocks[s3] = mystocks[s3] - nssell;
                    cash = cash + nscheckprice;
                    pass("You have successfully sold your " +nssell+" stocks for "+nscheckprice);
                    pass("Now , you have , "+ mystocks[s3]+ " of stock ID "+s3);
                    pass("You are left with " +cash + " cash");
                }
            }
            else
            {
                pass("Invalid Input!");
                pass("Enter a number from 1 to 8");
            }
            break;
            default:
            pass("Invalid Input!");
            break;                
        }
    }
}
private static void commandlist()
{
    pas("Your command list : ");
    pas("checkstock - check the current and earlier value of a stock");
    pas("invest - buy shares ");
    pas("sell - sell ur share ");
    pas("exit - leave the game");
    pas("my - show ur all current stock");
    pas("cash - show ur current cash in hand");
    pas("There are 7 stock with id 1 , 2 , 3 , and so on till 7")
    pas("Remember ! It is case sensitive");
}
private static void pass(String source)
{
    System.out.println(source);
}
private static void pas(String source)
{
    System.err.println(source);
}
}

现在，我如何知道并告诉计算机某个按钮被按下，就像用户按下投资按钮，它会打印“您希望投资”

---

我该怎么做呢？

您当前的程序只不过是一个大的静态主方法和一些小的支持静态方法。由于这段代码与大多数控制台程序一样是线性的，而且它没有OOP兼容的类，因此无法直接转换或重用这些代码以在事件驱动的GUI中使用。我建议：

• 用实例字段、构造函数和非静态方法将程序背后的逻辑或大脑提取到真正的OOP类中
只有在这样做之后，你才应该考虑创建一个GUI来显示逻辑。
• 阅读一本关于OOP和Java的书，比如“用Java思考”，因为这将帮助您以OOP的方式思考和编码

要考虑的非GUI类：

• 具有字符串名称、双精度（或BigDecimal）值、字符串缩写名称的股票类
• 拥有一个字符串作为名字的播放器，一个

  HashMap

  作为持有的股票和股票数量
• 玩家可以买卖股票的市场

---

---

归根结底，没有一种简单的方法可以将此代码“转换”为GUI，相反，您应该专注于学习Java基础知识，并在学习过程中尝试代码（因为这就是您学习的方式）。

看一看然后看一看“需要帮助将Java游戏转换为Java小程序”Nooooooooo！将其转换为

JFrame

，然后使用从链接启动它。它将更快地到达部署点，更低的维护，用户将感谢您。

公共类按钮使用扩展java.applet.applet

并且无论您决定以何种方式继续，都使用Swing组件而不是AWT。关于放弃使用AWT组件的许多好理由，请参见我的答案。好的，我肯定会在swing上阅读，但实际上我必须从swing开始，但顺便说一下，在AWT中我已经开始了。

import java.awt.*;

public class Buttonsuse extends java.applet.Applet
{
    Button invest , sell , check ;
    public void init()
    {
        setBackground (Color.white);
        setLayout(new FlowLayout (FlowLayout.CENTER,10,10));
        invest = new Button("Invest");
        sell = new Button("Sell");
        check = new Button("Check");
        add(invest);
        add(sell);
        add(check);
      }
}