import java.util.Scanner; public class LeapYear { public static void main(String[] args) { Scanner input = new Scanner(System.in); System.out.print("请输入年份:"); int year = input.nextInt(); if (((year % 4 == 0) && (year % 100 != 0)) || (year % 400 == 0)) { System.err.println(year + "年是闰年"); } else { System.out.println(year + "年不是闰年"); } } }//源代码片段来自云代码http://yuncode.net