java判断闰年：package week1;import java.util.Scanner;public class test3 { public static void main(String[] args) { System.out.println("请输入一个任意年份"); Scanner sc=new Scanner(System.in); int year=sc.nextInt(); if((year%4==0&&year%100!=0)||year%400==0) { System.out.println(year+"是闰年"); }else { System.out.println(year+"不是闰年"); } }}