java - 游戏的 JOption 面板

Question

我正在尝试制作一个游戏，一开始，第一部分很好，但是，我无法解决第二个问题，我希望它显示:如果输入"is"(不区分大小写)，则显示规则_yes，如果写入其他内容，则显示规则_no。目前，无论我输入什么规则，它都只运行rules_yes。我可以获得一些关于如何实现这项工作的反馈吗？

{
String user_name;
String name_answer;
String yes_no;
String rules_yes;
String rules_no;
char input;
private char yes;
private char Yes;

{
    user_name = JOptionPane.showInputDialog("Enter Your Name");

    name_answer = ("Hello " + user_name + " Welcome to Tic-Tac-Toe, Click OK to Start");

    JOptionPane.showMessageDialog( null, name_answer );
}

{
    yes_no = JOptionPane.showInputDialog("Would you like the rules (Y/N)");


    if (input == Yes || input == yes)
    {

        rules_yes = ("Yes? The Rules: X goes first, each player takes turns to put their symbol in one of nine boxes, you cannot put your symbol in a box which already contains a symbol, the first one to make a row of three wins");

        JOptionPane.showMessageDialog( null, rules_yes );
    }
    else
    {

    rules_no = ("No? Well too bad, here are the rules, The Rules: X goes first, each player takes turns to put their symbol in one of nine boxes, you cannot put your symbol in a box which already contains a symbol, the first one to make a row of three wins");

    JOptionPane.showMessageDialog( null, rules_no );
    }
}

Answer 1

您的代码存在很多问题，但您可以采取许多措施来简化代码。

1. yes 和 Yes 未初始化，这导致您的程序失败。
2. 您可以将 yes_no 声明为 String，然后使用 if (yes_no.equalsIgnoreCase("y");(而不是使用 char yes 和 char Yes)
3. 这不会影响您的程序，但行之间的间距很大，这使得它看起来比实际要多得多。
4. input是不必要的，所以你可以删除它。

所以你的最终代码可能如下所示:

import javax.swing.JOptionPane;

public class ScratchPaper {
    public static void main(String[]args) {
        String userName;
        String nameAnswer;
        String rulesYes;
        String rulesNo;
        String yesNo;

        userName = JOptionPane.showInputDialog("Enter Your Name");
        nameAnswer = ("Hello " + userName + " Welcome to Tic-Tac-Toe, Click OK to Start");
        JOptionPane.showMessageDialog( null, nameAnswer );
        yesNo = JOptionPane.showInputDialog("Would you like the rules (Y/N)");


        if (yesNo.equalsIgnoreCase("y")) 
        {
            rulesYes = ("Yes? The Rules: X goes first, each player takes turns to put their symbol in one of nine boxes, you cannot put your symbol in a box which already contains a symbol, the first one to make a row of three wins");
            JOptionPane.showMessageDialog( null, rulesYes );
        }
        else {
            rulesNo = ("No? Well too bad, here are the rules, The Rules: X goes first, each player takes turns to put their symbol in one of nine boxes, you cannot put your symbol in a box which already contains a symbol, the first one to make a row of three wins");
            JOptionPane.showMessageDialog( null, rulesNo );
        }
    }
}

如果您有任何疑问，请在下面评论，我会尽快解答。谢谢!