获取每一年二月的天数

public static void main(String[] args) {
		int year=2000;
		showDays(year);
	}

	private static void showDays(int year) {
		Calendar c=Calendar.getInstance();
		c.set(year, 2, 1);
		c.add(Calendar.DAY_OF_MONTH, -1);
		int days=c.get(Calendar.DAY_OF_MONTH);
		System.out.println(days);
	}