java输入一个月份判定季节

在 Java 中，你可以创建一个函数来根据输入的月份判断季节。这里是一个简单的示例：

public enum Season {
    SPRING(3, 5), SUMMER(6, 8), AUTUMN(9, 11), WINTER(12, 2);

    private int startMonth;
    private int endMonth;

    Season(int start, int end) {
        this.startMonth = start;
        this.endMonth = end;
    }

    public static Season getSeasonByMonth(int month) {
        if (month >= 3 && month <= 5) {
            return Season.SPRING;
        } else if (month >= 6 && month <= 8) {
            return Season.SUMMER;
        } else if (month >= 9 && month <= 11) {
            return Season.AUTUMN;
        } else if (month >= 12 || (month == 1 && isLeapYear())) { // Considering February in non-leap years
            return Season.WINTER;
        } else {
            throw new IllegalArgumentException("Invalid month number");
        }
    }

    private boolean isLeapYear() {
        // This is a simplified leap year check; for more accurate implementation, use GregorianCalendar
        return (month == 2 && ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0));
    }
}

// 使用示例
int inputMonth = Integer.parseInt(JOptionPane.showInputDialog("Enter the month:"));
Season season = Season.getSeasonByMonth(inputMonth);
System.out.println("The season for the given month is: " + season.name());

这个例子中，我们定义了一个 `Season` 枚举，每个季节都有其对应的开始和结束月份。然后通过用户输入的月份查找合适的季节。注意，为了处理闰年的二月，我们简化地检查了当前是否为闰年。