Question

我是java的初学者，我正在尝试使用我的if / else语句根据正确或错误的答案递增或递减的分数系统。如果用户匹配文本文件中找到的文本，程序应该递增，如果不正确则递减。现在，如果不正确，程序将显示“-1”，如果正确，程序将显示“1”，无论它通过循环多少次。它应该改变结果的值，但它会一直重置为“0”。我已经尝试过，但我相信我的范围有问题。如果有人能帮忙，我会非常感激。

package typetrain;
import java.util.*;
import java.io.*;
import javax.swing.*;

/**
 *
 * @author Haf
  */
public class Game1 {
public void Game () {

    JOptionPane.showMessageDialog(null, "Please answer in the correct line of text. \n"  +
            "each line of text will grant you one point. "
            + "\nIncorrect answers will lead to a point being subtracted");
    String fileName = "test.txt";
    String line;
    ArrayList aList = new ArrayList();

    try {
        BufferedReader input = new BufferedReader (new FileReader(fileName));
        if (!input.ready())   {
            throw new IOException();

        }

        while ((line = input.readLine()) !=null) {
            aList.add(line);
        }
        input.close();
    } catch (IOException e) {
        System.out.println(e);

    }

    int sz = aList.size();


    for (int i = 0; i< sz; i++) {


        int result = 0;
        String correctAnswer = aList.get(i).toString();
        String userAnswer = JOptionPane.showInputDialog(null, "Copy this line of text! \n" + aList.get(i).toString());


        if (correctAnswer.equals(userAnswer)) {
            JOptionPane.showMessageDialog(null, "Correct!");
            result++;


        }

        else if (!correctAnswer.equals(userAnswer)) {
                    JOptionPane.showMessageDialog(null, "Incorrect!");
                    result--;

        }                  

        JOptionPane.showMessageDialog(null, result);
    }

} }

Answer 1

您只需将int result = 0;移至for循环前的行。否则，每次都会重置为0。

尝试在使用if / else时实现乐谱系统。 [JAVA]

1 个答案: