Java自定义异常怎么用？简单教程来啦！

public class InvalidInputException extends Exception {
    public InvalidInputException(String message) {
        super(message);
    }
}

public class UserValidator {
    public static void validateAge(int age) throws InvalidInputException {
        if (age  150) {
            throw new InvalidInputException("年龄必须在0到150之间！");
        }
        System.out.println("年龄输入有效：" + age);
    }
}

public class Main {
    public static void main(String[] args) {
        try {
            UserValidator.validateAge(-5);
        } catch (InvalidInputException e) {
            System.err.println("输入错误：" + e.getMessage());
        }
    }
}

public class BusinessException extends RuntimeException {
    public BusinessException(String message) {
        super(message);
    }
}