java 秒转小时

public class TimeConverter {
    public static double secondsToHours(int seconds) {
        return (double) seconds / 3600;
    }

    public static void main(String[] args) {
        int seconds = 7200; // 示例秒数
        double hours = secondsToHours(seconds);
        System.out.println(seconds + "秒等于" + hours + "小时");
    }
}

public class TimeConverter {
    public static double secondsToHours(int seconds) {
        if (seconds < 0) {
            throw new IllegalArgumentException("秒数不能为负数");
        }
        return (double) seconds / 3600;
    }

    public static void main(String[] args) {
        try {
            int seconds = -7200; // 示例负秒数
            double hours = secondsToHours(seconds);
            System.out.println(seconds + "秒等于" + hours + "小时");
        } catch (IllegalArgumentException e) {
            System.err.println(e.getMessage());
        }
    }
}