解决Java方法返回类型错误：在条件判断中正确使用用户输入的字符串

public static void yesornodisability() {
    String disabled;
    Scanner scanner = new Scanner(System.in);
    System.out.println("Are you registered disabled(Yes / No)? ");
    disabled = scanner.nextLine();
    // 此处没有return语句，或者即使有return;也只是结束方法，不返回具体值
}

public static int swimmingprice() {
    // ... 其他代码 ...
    String disabled = yesornodisability(); // 编译错误：void不能转换为String
    // ... 其他代码 ...
}

import java.util.Scanner; // 确保导入Scanner类

public class PriceCalculator { // 假设在一个类中
    public static String yesornodisability() {
        String disabledStatus; // 变量名更清晰
        Scanner scanner = new Scanner(System.in);
        System.out.println("Are you registered disabled(Yes / No)? ");
        disabledStatus = scanner.nextLine(); // 读取用户输入
        return disabledStatus; // 返回读取到的字符串
    }

    // 假设其他方法如age()和total()已定义
    public static int age() {
        // 示例：实际应从用户获取年龄
        return 25; 
    }

    public static int total() {
        // 示例：初始总价
        return 20; 
    }

    public static int swimmingprice() {
        int userAge = age();
        int totalCost = total();
        // 现在可以正确地获取yesornodisability()方法返回的字符串
        String disabledStatus = yesornodisability();

        if (userAge <= 18) {
            totalCost = totalCost / 2;
        } else if (userAge >= 65) {
            totalCost = totalCost - 3;
        } 
        // 使用 .equals() 方法比较字符串，而不是 ==
        else if (disabledStatus.equalsIgnoreCase("Yes")) { // 忽略大小写更健壮
            totalCost = totalCost - 4;
        } else {
            totalCost = 10; // 默认价格
        }

        System.out.println("The swimming price for you is " + totalCost + " pounds.");
        return totalCost; // 返回计算出的最终价格
    }

    public static void main(String[] args) {
        swimmingprice(); // 调用主计算方法
    }
}