import java.util.Scanner; public class Main { public static boolean isLeapYear(int year) { return year % 100 == 0 ? year % 400 == 0 : year % 4 == 0; } public static void main(String[] args) { // TODO Auto-generated method stub Scanner in = new Scanner(System.in); int year = 0; while (in.hasNext()) { year = in.nextInt(); System.out.println("请输入任意一个年份:"); if (year < 0) { System.out.println("输入为错误的年份"); } else { if (isLeapYear(year)) System.out.println(year + "是闰年！"); else System.out.println(year + "是平年"); } } in.close(); } }